She isn't the powerful local wizard; she's just his secretary. (He swears he'd be lost without her keeping track of all the paperwork.)

I was just in the mood to create an anime-style picture of a cute, shy, delicate-looking girl who serves as the faithful secretary for a powerful wizard who hates the idea of spending hours a day on paperwork, so he pays her to handle all the messy details -- taxes and invoices and so forth -- and he has even provided her with a few magic gems and the like which both look nice and serve useful functions in a pinch. (If she feels threatened by an intruder, for instance.)

I fiddled around with this until I thought the latest evolution looked good enough. (One of these days, I may even come up with a good name for this sincere, hard-working secretary whom some suspect of being the real brains of the operation.)