Janet Pym aka Janet van Dyne, Wasp of the Avengers.
Think she works really well as a pony! If she was G3, maybe she'd have been a breezy.
I've got an old concept of a wasp pony here too: [link]
Made with the aid of [link]
and then heavily edited with my own custom hair styles, cutiemarks etc.
My Little Pony belongs to Hasbro with kudos to Lauren Faust.
Avengers belong to Marvel comics.