I actually really am proud of this one.

My lord - what an unattractive man. Fix the yellow teeth.

Hey, hey. Photo composition/quality, not what does or does not attract you! I fixed them moderately after this, but on my computer screen, as well as a few others, they seem to alright! =S

0/10, because guy needs a shave kidding

6/10. Lighting is even, colors/etc is good, but pose is boring. Ugly guy smiling. Yawn.

I agree with the man's unattractiveness...
I know the photo is not about the model and about the quality, but sometimes, if you show the wrong features on a model, it can ruin your photo and make you look bad and not the model.
Maybe he looks much worse than what we see, but with those ugly teeth, don't have him smile, and make sure the focus is dead on the eyes (they appear to me a little blurred)..
If it was a fashion photo, you can't sell anything cause the eye goes only on the teeth...
I'm sure he can do much better with his mouth closed, or showing only the teeth and not so much the gums

Or showing less hair, and more cleanliness.