I agree with fj, it doesn't hold a lot of interest. We don't get to see the expression in his face and especially the expression in his eyes. But more over, I am now seeing a pattern with your portraits, you're not filling the frame with your subject. For portrait photography and many other types too, you want to fill that frame completely up with your subject, get in their close, intimate, and let the viewer see the person up close and personal. There's a Robert Capa saying that goes "If your pictures aren't good enough, you're not close enough". Next time you do portraits, get right in there, fill the entire frame up with them, give the viewer a look at the person that could only occur by an invasion of their personal space. I think you will really like the results.