All I can say of this is, well, Needs alot of work in most sprites.
What I see here are weak edits and poor recolors, I wouldn't be too proud on these.
Try to make it where you edit it into something different from the sprite, the base shouldn't be too obvious nor too poorly edited.
I don't understand what you needed to accomplish in just recoloring a shit load of sprites, but it seems bad to me, no offense as I usually mean.
I can't give good criticism because, well, nothing to criticize here. Just a bunch of meaningless stuff. Really it's not work until it's edited properly. I don't wish to come off as mean for this, but take time to do a GOOD job. Im sure no one would take this if you plan on using them for something, because they're nothing new or exciting like a good sprite should be. Really all I see here is stolen work recolored to fit your character's same skin tone and clothes, do work on this. Im not sure if you can edit good or not, or if this is all you can do, but like I said, major work.
I don't wont to say this as my words, but shown to another good spriting friend. Just pitiful he said. Simply fail. Work harder, cause I honestly can't say I like what I see here.