It looks good with all the contrast created with the white, but it really drains it of the color. Maybe slighty more color in the white areas would help.

I agree with what nolani said about the colour. Maybe you could add one more shade between the colour and the highlight, or make the coloured area a little larger and add an extra shade. I feel taht if you do this you could add some depth that's missing in it right now.

Otherwise, I like it and it's original, those are just my opinions above, and since it's your style I can't really say too much, but how I would do it if I were you. >.<

I really love your line work you have a lot of skill. You're very good at simplifying hands, some people no matter how they do it, their hands just look odd if they try to simplify them, but you're turn out so well. I love your work, keep it up.

^_^ ttfn

Sara