Provide a set of models (source and target) exactly representative of what you mean, and people will be able to point you in the right direction with practical demonstrations.
Did the rest of the skull. The jaw and teeth aren't great, but sufficient for this purpose. As long as I know they're there. I could probably detail the crazy looking underside of the skull a bit more, but it's not needed. I also practice masculinising the skull just for fun (on the right in the second image). I'll stick…
Oh, yes. That could be practical to add. A checkbox to use the background color as configured in the environment settings, or separately specify the color?