Way better than anything I can do, or probably will ever do.
But nevertheless, I might as well try to provide some feedback - though I know I'm not really qualified. I would just say that the area around his right shoulder/chest (left of the image) needs a little more depth or shading or something. It somehow seems a little tiny bit flat. Anyway, don't be offended, it's great work. I'll try to scout you (I just got scouted today, so not sure how this works) :)