I played some of the charts a bit, but experienced all of the songs on offer here. These are mostly written in opinions over something in-depth, so hopefully you can understand some points I'll get across.

Since you did a mixmash of chart types into one file (Really bad idea, by the way. You should either keep it as a Pad or KB-centric file.) I mostly did the Expert versions (Challenge too if there is one.) of the chart for now, as to me that's the most important part of a file.

Children of the night - It's not a song I would play on pad nor KB. Even the chart is uninteresting with many of the steps just actively trying to find purpose into the chart, but fails.

Overall: 2/10. Song choice means a lot more than you'd think.

Diffraction:

Expert - Actually pretty fun as a keyboard chart, but this chart did not need these speed gimmicks.

Standard - The one thing I disliked is how you just covered up some parts up with a freeze, that's just lazy and really takes out a lot of the fun of it.

Overall: 7/10. The slow downs are fine, but there was absolutely no place for you to randomly speed up parts of the song.

Good-Bye Crisis:

Expert - It's alright, again speed gimmicks here are uneeded. Kinda reminds me of a file from Otakus Dream, honestly.

Standard - The steps should stop relying on the vocals so much and attempt to step with the instruments too, especially when the vocals are less active in the middle. This would've been a pretty neat Expert chart as a Pad file.

Overall: 6/10. I think this could be passed to the Otakus Dream pack, haha.

Kickin Chicken:

Challenge: For once the speed gimmicks actually makes some sort of sense, and you actually did some really creative things in this chart. I actually liked the part where you warped the incoming mines into actual arrows, if you could give it just a little more breathing room for most parts, it would be really fun to play over and over.

Expert: Good potenial to be a boss song for Trotmania, honest. Problems are still similar to what I've had with the Challenge chart.

Overall: 7/10. If you would just take it a little more easy on the speed gimmick (Especially when the chart is at a high bpm - it's not challenging, it's disorientating) this would make for a fantastic boss/gimmick chart. This song definitely warrants a song cut.

Taking Wing:

Expert: Nice and simple. Again, speed gimmicks on a song that DOESN'T need it.... Also, the slow part just felt like you place arrows whereever to keep it interesting.

Overall: 5/10. Have you ever head of "Stops" before?

Personally, unless your packs are meant to be as gimmicky as possible, it really wouldn't kill you to just make a chart normal for once. The fun the charts comes from, well, a chart, not the gimmick it holds... Even if it's gimmick centric - a lot of the song choices here used really doesn't seem to fit, making all those sudden speed-ups even more jarring than they should be. It's basically not fun, for the most part. At the very least, the sync is decent and the chart itself is pretty interesting.
Just control yourself and please learn to cut songs, I think your files have a lot of potential otherwise.

Hello there  , it's good to be back here after some... time though, and... awww man, I should really pay more attention to this forum next time. Sorry for the extreme late reply anyway. Dx

_{Errr, I didn't really expect a reply here, no offence, and that was totally my fault for making such bad assumption. My bad. =x
And recently getting busy in gaming and creating subtitles and RL stuff, blahblahblah...} no one care anyway. 

Thanks for taking the time and effort to give critic after the FIRST day I uploaded the file, and I kinda surprised of it. Dx

Oops, I guess I overdid it.
Sorry 'bout the excessive use of "speed change" in the chart, and I did noticed you mention the word "gimmick" A LOT in your comment.. 0_o 
The horror, the horror. 
Erhem, I think I will explain it later...

To be honest, this whole stepmania thing is still fairly new to me as I'm not familiar with the game "mechanism" nor fully understand the ability of the stepmania in "EDIT" mode. Furthermore, I'm just lacking the experience of how other people would react when playing the song's chart, and you're right, it's more like an "opinion" from my own perspective itself instead of... you know, how a normal chart would look like.
Oh, and just another thing, the songs in "TrotMania Chrystalize Program" Pack was my ever first time to be played in stepmania, if the 3 default songs in "Stepmania 5 Pack" don't count. And before that... I don't even know stepmania 5 even existed. Dx

And thanks Lirodon for the tips and his awesome contribute to bring the light out of it.

1) Song choice about Children Of The Night:
Hehe, I already knew this song was not meant to be play in any rhythm game, although the song itself, is pretty impressive. However, I seen someone was requesting it to be play on stepmania or o2mania, and... I don't recalled it from anywhere now. I just wanna try to do it, and you know, it failed somehow to be an interesting chart to play, and I agree to it.
But never mind, I will keep that in mind and try to avoid slow and claming type of song next time. (you know, this song is meant to be a lullaby. xD).

^{But.... I also have seen some people to have really weird music taste, which they prefer this "kind" of music when playing on the rhythm game, and I do believe it is minority, as I was not fond of playing "slow and soft song" myself.}

However, I believe myself will still tend to have poor choices of music since... you know, everyone have different kind of taste on everything, and to satisfy everyone need, is kind of impossible. I'm will still NOT TOTALLY avoiding the "danger zone of slow song" if the song itself is highly demanded, or interesting somehow? I don't know how to describe it, but anyway, I'll try think twice on choosing the music before proceed to make the notechart of it.

p/s: I wanted make the notechart of another song with similar "fashion" as CotN, which is the "Ponyphonic - Lullaby for a Princess", but... the song is way too lengthy (almost 8 minutes with lots of BPMs changes) and you know... kinda boring to play in stepmania anyway no matter how good you are in note charting.
So... the idea is cancel anyway.

2) Excessive uses of "Speed gimmicks"
Hmmm... you seem to be really unhappy with this "abuse use of sudden speed change", and I can really explain why I overdid it, my bad.

Firstly, this is because of the main influence from other rhythm game, like 02mania and beatmania, (Osu is not a problem here) which is the bad influence anyway, I know. Dx
I don't know 'bout you guys whether got the experience beforehand on playing 02jam/beatmania or not, but... I just kinda adapted to the "style or phenomenon" of playing the hard song, which has lots of speed changes which only serve the purpose on "just looking exciting" and cause lots of frustration for beginners to play them, instead of following the song BPM itself.
Ok, ok, I know that apples and oranges don't mix well. _{Err... what? why am I thinking of Applejack from the IDW MLP comic at this point.}
Anyway, in other words, I shouldn't apply the other game "playing style concept" into stepmania or something like that, isn't?
What is Pump It Up anyway? I just google it just now and just knew about this anyway, and thanks for mentioning it.

Secondly, I was trying to make an attempt of not following the notechart style in Trotmania series. I wanted to make it look different and "unique" somehow. Errr... not a really bright idea, but this is the truth somehow.

Thirdly, I was thinking of using the speed change to increase the song difficulty, and end up using it a lot... wow.

In overall, I will try to control myself and try my best not to went "crazy" next time. =P

3) Uncut song length of more than 3 minutes, I assume.
Eeyup, I'm sure agree on the "repetitive and the much filling" part. However, here's are my reason and opinion anyway. (Don't get me wrong, I have nothing against edited short song. Dx)
Well, recently, I do try to play other songs than the Trotmania series itself, and downloaded few extra song packs from various site. The songs themselves majority are more than 3-5 minutes for some reason, and I just follow the "trend", I guess?
Then, as for my liking towards uncut song, which I'm pretty sure is the same for most people who prefer it unedited. Not going to mention the reason here, as they're pretty OBVIOUS anyway. For example, if you wanted to download a song from iTunes, would you prefer a 30 second edited song or a 4 minute original song?
In overall, it's just that different people have different taste anyway, nothing much to talk about it.
And in other words, some people like the song itself more than the notechart. I get it.

>>Skip this as this part is kinda unrelevant and off-topic anyway<<
Oh yeah, I wanna say a little something from my PERSONAL experience, which is kinda offensive and unfair to the awesome people who contribute to the success of Trotmania.
I remember back in the specific day, which was my first visit to my local MLP convention this year (which also the first time in my country, hooray for pony!).  Other than getting wonderfully surprise reaction of looking at the new faces and meeting some talented people around the country, there was a game section in the convention. But, don't get your hype up yet, cause unfortunately, Trotmania wasn't one of them. =/ YET. (Fighting is Magic was there somehow, wow, wasn't it got C&D quite some time ago? I kinda "bullied" most of the player there, cause majority of them either never heard of it, freaking random button smasher with no strategy, or just simply a newbie.)
Here's a snapshot of it about how crazy I am towards this game, and just for the fun of it:
http://i58.tinypic.com/72x7r8.jpg
^{pssttt... Rainbow Dash is not my top favorite pony btw. Dx}

I'll just straight get to the point, there's another rhythm game called Guitar Hero, I think? And the game itself was slightly modified to have some pony music in them. I do observed whatever happen in that game booth, and you know what? People do complain of the song getting cut and being too short to be enjoyable. I kinda chuckle a bit when people was playing the "Smile Song" from the MLP series, people around start to sing along with it as the song play along. Suddenly, the song got cut to the last chorus part of the song (which is kind of similar happen in Trotmania, lol), and the crowd just like "Awwww.." "What happen?" "I don't remember the song being that short" and other whining sound, lol.
And I can't get use to see those manly PUNK Rockers singing the "Smile Song" in the background when the game is played, and I was laughing quite hard on that day. (just imagine a rocker dude with tattoo all over the body, having the singing voice of Pinkie Pie.    ) Thanks Celestia for Trotmania having the custom wonderful music video as the background. 
I do see the similar disappointing reaction when I watched people playing any other rhythm game song in the arcade, which the song were kinda edited and shorter. ^{(Including my sis as well, lol)}
No offense, short song has it's own benefit I know, but you know, some people just prefer to enjoy the music more than the chart, I guess?
>>Skip till here and continue<<

I know, I know, the short edited song existed for some reason, and I kinda like the Trotmania pack the way it is. =D Short edited song will come straight to the point, more exciting, less repetitive, more user-friendly and _{radda radda radda you know what...}

Oh yeah, I did know how to use various software like Audacity, CyberLink Wave Editor, Sony Vegas and others to edit the video or the music.
Children of the Night was one of the "edited" one anyway, as did you notice the introduction and credit part were missing, and there's subtitle underneath the video as well.   
So..... I was thinking about that, I should upload the edited short length version along with the original length together, and of course in the separated folder. But, they will took some time. Dx
In other words, short song which has less than 2 1/2 minutes will remained the same, and I'll try my best to edit the length of the songs which are longer than that, which is kind of the way the current Trotmania adopted. _{(There's lots of "whiches" in there. Dx)}

4) the "Stops"
Yeah, I do. There's actually one in the song "Taking Wing" roughly at the first minute of the song. =D
And just coincident that the five songs I uploaded have no "stops" in them. xD
What are "freeze" anyway if I must ask, is it the "hold"?

5) the pads style for "Pads" or "Keyboard"?
Actually, I do realize something, that the notechart is not really consider as "keyboard" if there's are no triples or hands in the notechart, which is the current style I'm using... And the challenge difficulty is still playable with pads, but you just need to be very good with it. Dx
So, I think I'll stick to the "Pad" anyway. Or whatever had shown in the Trotmania style.

>>So..... I think I cover most of them, I think?<<
And right now, I'm encounter a tiny problem right now, cause basically... I have more than 20 songs here which were notecharted in the "similar gimmick style". However, not all of them will be that way anyway. 

For the gratitude for reading my wall of text here, again, I try to upload some notechart on this weekend, if the internet isn't decided to die on me. Dx
(Warning: The Song Length Is Unedited And May Cause Disappointment And Frustration.)

p/s: Well, I never thought of joining the team in the first place, at all. I just never think myself to be qualify anyway since my notechart style is done very differently (and intentionally to be that way?), and inability to online all the time due to limited network access here. So... I think I will pass at the moment.
Plus, I'm not an artist nor an expert in writing code and stuff for the game. Dx

LOL, it's been a year since the last comment, haha.    Time surely is flying fast. xD

It is really quiet around here... lol