The head is definately small and the crotch a little high. I'd make the waist a bit smaller to accentuate the huge shoulders.
Sideview needs attention to the butt/chest/back area. Tilt his upperbody back so that he doesn't look like he'll fall on his face.
Other than that good modelling job.
"Whatever tomorrow brings I'll be there...with open arms, and open eyes" - Incubus