At first I thought this was another boring 'blank' expression but there's definitely an enigma to this man's expression, and the artwork to the left heightens this. I definitely think you could crop more bravely and lose some of the uninteresting background on the left. Good shot.
I want to give this image a high score - (I will). It is a great photograph. The posture and attitude of the man very strong but the background is stronger. It draws so much of my attention. Not easy to rate.
I would have loved this, I think, in a good black and white conversion - as it is the skin tone is too red for me. But overall a really great composition and combination of elements - very creative.