I'm really, really liking the look of these shapes. The collar bone in the front view slightly disturbs me, and I'm not sure about the size of the head. I assume you're working closely to references for both proportions and shapes.

Looks very promising though. Muscular definition looks fantastic.

 

PoserPro2014(Sr4), Win7 x64, display units set to inches.

                                      www.danielroseartnew.weebly.com