At least I think
she's a magical girl
I haven't drawn a chibi in a long time... nor have I drawn a "human"-ified pony magical girl since this ugly thing.
Personally, I'm not a big fan of Cupcakes Pinkamena because I'm sort of a purist when it comes to fanfiction, and Cupcakes was written before Party of One was aired. However, I like her hair/mane and I wanted to draw something cute and dark, so here you go
Cupcakes (c) Sargent Sprinkles
Pinkamena Diane Pie (c) Hasbro and *fyre-flye
Artwork (c) ~LeffenKitty