[DustyPorViva]

I think the shading on the legs shows light-source, but does not define the anatomy well enough. I assume he has tight pants on, but even so, it looks more like bubbles in his legs than muscles. You might want to look up some STRONG men, not to mimic their muscles, but because they usually have the best defined muscles for reference. Also, I think his right(our left) foot needs to be facing us, it looks really weird as it is now. Actually, perhaps even both feet should face more towards us, as his whole body is nearly facing that direction.