Very nice render. I would be carefull of the eye placement though. When people look down like that, you wouldn't see the top of the iris. You could do some post work on the lips as the beard part of the texture seams to be spilling into the lips. This could be correct on a human, but on a 3d model, the beard hair streatches across the lips and doesn't quite look right. There seems to be dark but faint splothes on the facial skin around the cheek area. This might be due to excessive cloning in the original texture. You may want to try to fix that. Either on your final render, or if you intend to use this texture often, fix the texture itself. Very nice mood and lighting and facial expression. I think it is worth perfecting.