I like the atmosphere of the shot. I have always found the midnight-8:00 a.m. shifts that people work intriguing. I took some shots of some late night activity at our local city bus terminal and was harshly rebuffed. Oh, well. . .

My only suggestion would be to crop off some of the black at the top of the picture. Was the guy aware you were taking the picture? He seems like he might be looking out at you.