I'm not a huge fan of gangsters
..but your mesh is very good, and must be quite demanding on your poor innocent computer, heh. I have made a few organic 3D stills myself, and boy, my GPU didn't like that!
I "cheat" when I make 3D still art, and retouch in Photoshop. You could, for example, make the hairline slightly more realistic with this method. Do you ever "cheat"?
Just a thought, I know (and can see) you're a professional, so I don't presume to teach you anything
Good job so far!