Yeah, I don't know the last one and honestly didn't even intend to come across as if I had that much of a clue..
I simply remember having the thought of looking less caucasian in the beginning months post-op. When I saw the photo of the skulls (by chance, for something unrelated to this), it seemed to make sense it would be that way considering the movements I had done..
The fact I thought something looked more or less white, black, asian, aboriginal, etc. had to be based on a stereotype image of each as a whole. It was a general impression, nothing more. I hadn't even stopped to think of variations within ethnicities (hey, clueless me) or analyzed anything in detail/proportion-wise.
Regarding "relating the jaw movement to the rotation you're having".. the only relatively precise thing you can do is drop your jaw a bit and observe how it looks going down and back. I wrote in a previous comment I had done that and think it looks better. I actually don't hate my genio after the fact.
In clarifying the part about stretching the philthrum, it was so you wouldn't get the impression of me trying to make exact predictions off of it.
I've seen photos where after impaction, the philthrum and face as a whole look bigger. I would assume it's because the lower third moved closer to the eye of the observer, since technically there's less bone. That being said, I'm unsure whether downgrafting produces the immediate opposite outcome.
Back to Lefort 1, I've witnessed other people with large maxillary advancements have a same effect on their soft tissue, other than easily spotting it in before/after photos of myself.
When writing "easy to answer", I had the latter aspects in mind..