What you can do is copy bunch of skulls and learn ideal head proportion chart then study individual features also continue to practice blocking simple head like this one
Hey there, Nizza_waaarg, thanks a lot for ur comment. Yeah those teal colors in the shadows would work nice, but unfortunately I can't find a way to make it look this way UDK. I tried to fiddle around with postprocessing, but the whole thing just goes muddy instead.=( But maybe I could edit the final pictures in photoshop…