This will be my first post, never really gotten critiques for my illustration or made effort to look for it; so guess this is also a first.
I know its still in its early stages, but I wouldn't mind some outside insight on it all. Arms are a bit dodgy looking but think I'll have to render it more to get it the way I want... only real concern is the proportion.. anyway here it is;
Removed that grey bg and attempted to define the muscular structure. added a dark shadow to suggest the character is grounded and tweaked the hair.