Ok ok. it's good they are free :P that is a plus
the minus.... the polycount. u used alot of cilinders just to fake the hair :S which is not the best solution. try extruding instead of using primitives. they give it a noob look.
the body and faces. MORE poly's on those spots. just tweak tweak tweak. i know it's hard to model with MED. that's why I bought 3dsmax at our school. and the textures.... just UVMap it better and u'll be suprised of the outcome ^^
the Anatomy.. I won't bother you with this before you get a good mesh.

-Jeroen

EDIT: no critz on the dragonball! wonderfull