Welcome to the forum.
There are things that I like about this image. The exposure is good, it's very sharp, the shallow DOF (maybe a little too shallow) gives a nice effect.
I'm uncertain about the feeling though. I'm not sure if he's smiling, or worried or something like that. I think it might be a stronger portrait if he was looking at something besides the camera...or maybe if he was engaging the the camera a little more.
Either way, it's still a very good shot and a great first post. I look forward to seeing more.