Opposite of my other suggestion where a new Razorback skin features him with a frown, this suggestion is literally how it sounds like.
I mean during one of the dialogue scenes in one of the Outskirts missions, Nightinggale says that it might be physically impossible to remove Razorback’s smile. So, why don’t we just enhance it?
btw, the fan creation kit is a goldmine for still images. Still waiting for usable 3d models…