I think this painting is going in a good direction, The face is extremely well painted with all the proportions pretty much being good. His neck is a little thin though and his shoulders are nearly nonexistent. Granted, you don't need to give him a bodybuilder neck but just to make it a little more thick would make him more believable. Also, his arm needs to get thicker, it's pretty much skeletal which doesn't align well with his well fleshed out face. It's a good painting, but there's so much you can do to it to make it better! Keep up the good work and best of luck with your project!!