Here's the first version I did:
And how it could look on her back*:
But I didn't quite like it. So I tinkered with it a bit. Nothing big. Made the wings cross:
And again, how it could look:
* To the best of my knowledge, this isn't Kif's back. It's a random photo I found while conducting an image search. A bit of warning to those of you out there who might, like I, search with the SafeSearch in Google set to off: The term "bareback" seems to be associated with an awful lot of gay porn. And I do mean an AWFUL lot. As well as the rodeo. Neither of which was useful to me. "Bare back" isn't quite so porn or rodeo laden. Just goes to show what a difference a space can make.