Who’s Tertiary cosplaying as?

One of the Ember Island Player actresses dressed up as Ty Lee from The Last Airbender.

Before the last episodes there was a recap episode where the characters were portrayed by actors in a stage play, although there are a number of inconsistencies and liberties taken with said play, one of which being "Ty Lee" being portrayed by a chubby woman, and wearing a tutu, despite Ty Lee not wearing one normally. https://www.youtube.com/watch?v=nPuQhDV6ghw

Ok