This is an professional anatomical illustration of human face elements : skull and muscles. All elements are on a layer so you can easily edit it and compose the skull like you want. All elements are layered (49 layers) : - main skull - bottom jaw - Right eye socket layers group : Hole, bone and shadow - Left eye socket layers group : Hole, bone and shadow - Nasal Cavity - Bottom teeth layers group : each tooth on a layer - Upper teeth layers group : each tooth on a layer - Muscles layers group : right side and left sir separated on layers - Right eye layers group : Eyeball, Iris ans lights - Right eye layers group : Eyeball, Iris ans lights