tan, hair, glasses, angle, lighting, full face picture vs black bar, pose, shirt vs shirtless, background. Literally everything about the after photo is made to make him look as good as possible.
Other than tan and hair all stated would make no difference. Its easy to imagine the before pic with glasses in sunlight and shirtless.
I interacted with the person and he stated in no uncertain terms the way people treated him was quite different after jaw surgery (in a positive way)