I wish surgeons would publish more consistent before/after pics in general.
I doubt most understand photography, shadows, and lighting. That is an art unto itself.
You really can't trust photos. I look pretty good in photos, but I'm still recessed after surgery. Head position, lighting, facial hear, and all kinds of other things affect a photo.
The guy in the OP had a great result as far as I can tell, but like I said, I'd have to see him in person, or at least see a ceph along with these photos. What is very positive and obvious is that all the muscular strain around his mouth is now gone. If his bite is good, he should (and probably does) consider himself lucky.