The revamps/devamps I don't care for; recoloring is recoloring. ;P
Trainers aren't too bad that. I'm especially liking your dancer, and the youngster's not bad.
Starting from the top left: head looks unnatural, like you really only did stick it on there, and at an awkward place at that. He's also missing a neck.
Next one; her legs look a pixel too wide, otherwise alright, too much green though.
Next guy, same problem with your first guy, head is set awkwardly. And he has no shoulders, makes him look like Ron Stoppable.
Purple haired girl has funky shading in the back of her hair, or lack thereof.
Cybery-guy looks cool, though some shading on the left hand would help distinguish it from the rest of his body.
Grunts have really short right arms.
Matrix-grunt has some funky clothes that make him overall unpleasing to look at :/ Can be fixed with some better shading.
Kneeling guy, not much to say, though I like the colors.
Purple person who I think is supposed to be a girl; looks too masculine, at least make her not flat-chested. Also the left arm looks awkward, maybe it's the position of the ball in her hand.
Sword-guy looks neat, overall decent job.
Same with the kid, though the legs look a bit short, even though they are bent, might be just me though.
Like the next girl's hair.
This guy's got too much stuff going on. The lower belt doesn't seem to be going around his leg like it should, unless that's the end of a too-big belt. Right hand; can barely tell it's there, needs more shading. Face looks weird, and I'm not sure if those are glasses on his head or that's just his hair. All in all he looks like an overly-angsty Cloud Strife.
Last one. I like the outfit for this person, though the veil/mantle/whateveritis on the shoulders looks a bit too big. Now... the head... I can't make out anything. I'm not sure if that's what you intended but I'm sure there was a better to do it if so.
Either way. Keep going. And make sure to submit that dancer to the TCM... if you want to that is xP
Recoloring + reshading.