I feel bad that everyone in the comments are merely fangirling/boying over the image, so I'll praise it in another way.
The lighting isn't too shabby. It certainly something I wish I knew how to do. Something that bothers me is his right shoulder; it's sticking out too much than it should. If it were anatomically more proportionate, it would be perfect. That's the only error I've seen. There is probably more, but hey, everyone has room for improvement.