Got a pose sketch without an idea for a character to use. So... (Patreon)

Sometimes I see a really good reference image or come up with an idea so I sketch a pose with no specific character in mind. In this case, I thought I'd give you guys a chance to come up with something!

The girl in question needs to be petite/slim and is gonna be doing either crunches or hanging sit ups.

Any suggestions for who you'd like to see?