Forget my edit. I was gonna make the green more saturated, but It seems like im the only one who wants the colours changed. OH well.
However, looking sweet. I think you should turn the body a bit when he walks, because he seems really robotic without it.
As for an answer to all the complaints as to you making another character, I think you should finish all these, then get the animation base, and base a new original character on that, if you wanted to solve those complaints and not waste this.