Was going to say the exact same thing as CFKaligula. Well, I guess there's no point now, is there :p
As for the shine, just decide where the light source is. Right now, despite having all that dithering, I can't really tell. Don't pillow shade every bump of the braids, see the braids as entire objects, and insist on the highligts on the parts closer to the light source. Hope that helps!