Disgust for Pony - Facial Expression

Pony version of my 'disgust' expression model.

Base pony has a pretty responsive keyword for disgust, but it's anchored more on anger / annoyance. I'm pretty happy with how this redirects in most cases, but it does need to be upweighted a bit for complex compositions.

Definitely helped by other adjacent expression keywords like wince, embarrassed, or scowl.