Wallflower Blush, as I like to imagine her to be. Her green hair is enough to convince me that she is more tree than human(oid), so I usually portray her either as a plant person or alien or a modern-day dryad. (I had this headcanon that Equestria Girls were descended from a sentient species of parasitical plant, hence their odd skin and hair being as vivid as flowers)
The orange flowers on her hair, wrist-rings, and sprouting near her are _Erysimum cheiri, commonly known as "wallflowers". Her dress is based on the leaves of a pine or fir tree, based on my jokes about her being a "walking Christmas tree".
The cockatoos around her are my personal touch, because I love cockatoos — they are cute and noisy enough to amuse me a lot. She would make a good guardian for those pesky, noisy birds.