Retopologized Head

I finally finished the retopology of my head sculpt: terrance8d.deviantart.com/art/… The retopology was a lot less difficult than I thought it would be, but still pretty difficult. There are a lot of things to consider with retopology, edge flow isn't the only thing. I plan to do some more stuff with this head, stay tuned. Well, made with Blender 2.75.1 gooseberry branch, OpenGL viewport render.