Gh! Sorry for the wait, I was gonna get to it last night but the main computer was occupied. >:I And that's the one with photoshop...
Here we are! What I did is generally went over the neck, shoulders, and chest a bit. You had the right idea, but it just looked a little off. Thicker neck, sliiightly narrower chest, not such wide-set shoulders, somewhat more muscular arms. I also went over the pectorals a little and kind of went over the abs, but to be honest I suck at abs so for those you may want to find real refs.
I also made the legs a little longer and went over the feet, but do the feet however you want because I can only really do paws. XD I also just laid out the loin cloth differently so it drapes over the left leg a bit more.
I also altered the hand and arm poses some and went over the face so that the bit above his eye makes an angry-eyebrow kind of thing. It already did that before, though, to an extent - I just wanted to make him look even moar serious!