See post #4942497 for reference sheet.
She has short pink hair with hair wings, blue eyes (which she can turn orange with crosshair pupils), and large breasts. She also has long legs and wide hips with a noticeable thigh gap which gives her a very particular silhouette that some fans compare to a tuning fork.
Official costumes with a model
She is sometimes seen accompanied by her partner/caretaker, Ganmo the frogmouth, and two younglings: a smaller chick with one feather-ahoge named Tsumire, and a slightly larger chick with three feather-ahoges named Tsukune.