What sort of hairstyle are you going for? To me, it looks like an attempt at a comb over. When drawing, it's a good idea to simplify things, but in this case the extent you did with the hair is too much. Think of hair as it really is: strands of dead biological fiber. Think of how hair grows out of your head, how it might look combed in a certain direction, and how it clumps together in larger strands. Other than that, I'd have to echo Sherman's suggestions.