Hey great first try. Here's my 2p:
You've flashed him and thereby really flattened the picture and left bad shadows. Natural light or well set up studio lights really are better than an on board flash fired directly at a subject because as you see here you've lost the features of his face.
That being said I like the angle you've chosen and you're eye contact is fantastic, I really feel like he's looking at me. I would give his eyes a little selective USM though.