Not bad. Personally, I'd remove that specular shine bellow his mouth. Also for the shading under the mouth, there's too much. I would just put a small shadow underneath his lower lips, and keep the jawline shadow close to the jawline (since the light source is obviously so intense). And also, I'd remove the line creeping up his face (unless it's a scar or something). The ear could do with some shading. Finally, on the hair, you should put the specular shines in the same direction as the lightsource (slightly to the right).Sorry for the intense criticism, but I just want to help