Exsavigh shaded in Photoshop from Flash

I made this for a very tiny character icon in my Super Smash Bros. Brawl character select screen and decided it would be an acceptable submission on its own. It should also pass as my updated avatar.

The Flash version of this won't have shading detail nearly as good because of the way shapes work in Flash. But, I've decided it is probably worth the additional time to have some shading (maybe 2 or 3 levels) for that extra touch of realism. I really need to escape my 7 day work week though.

I'm wondering if I should drop the design for something more humanoid.