Thanks for the advice. I'm working on the contrast, and outlines are like that cause hair is WIP. >But why should I use less colors? I'm using this for a flash game, I have no color number limit :S

I like the face expression  But you have many problems in this picture. You have to clean up random pixels, add more contrast and use less colors and try to make the outlines smoother. At the moment it just looks to blurry.

 The scar in the face is ugly :/

Try to improve this...And the hair too... You have used to much colors, you can reduce the number...