Galactus 'pixel-art' CnC needed

[StevenB]

Why hello, I'm back because I need some good critism on something I've been working on lately:



I'm a sucker for Marvel Heroes, so I made this to express the intense feeling of joy that is Marvel vs Capcom 3.

That aside, you might see that the shading on the sprite/pixel art is increddibly bad (too 'dirty' looking in my opinion), but I have no idea in what direction I should take it in order to fix it. I'm still used to smaller sprites wich I can stuff full of details, but I want to move more in the pixel art-genre of spriting. I hope you guys could give me some tips and critism to help me fix it.

Foremost, I'd like to know how to shade the top of the helmet correctly, because I think it looks really horrible right now, but all the attempts I made to improve it didn't go so well.



P.S. I just arrived here after some time, and some of the forum has changed. Since I'm not the most intelligent man to walk on earth, I assume that you post custom sprites you want CnC for here, right? Please correct me if I'm wrong.