The anatomy looks pretty stylized and nonhuman so there's really not much I can critique here.
I'd say use the turnaround of Winston from overwatch though, you seem to be going for a vaguely gorrila-esque look for this character so it might be worthwhile to check him out as a visual aid.
The shading on the abdomen makes his chest look concave, try to soften that some! And also look into fixing the light source, your shading is kind of all over the place here! Set up a circle and use that as a guide for where the light would fall.