I think it's just a combination of the camera angle and the way the light hits Mileena's teeth that creates the optical illusion of bigger teeth that you're seeing. The teeth move and shift when she opens her mouth. I added some indicators to the original pic to show what I am talking about.
Hopefully that links works!
Why shouldn't her face be somewhat pretty? She's Kitana's clone, for God's sake!
Ok, its one thing when a girl (assuming your a girl) is teasing you, its entirely another thing if she is teasing you about Mileena air saiing off a teleport kick. Will see, hope your right.