I can put together a few sketches for you... I have a couple ideas already.

[finishing her inspection, she saunters back to where she'd left her tablet to open up a painting program and quickly put down a basic stylized pattern that mixes leo's shell markings and the markings over his eyes.]

Mikey? [unfamiliar with turtle lore, she doesn't immediately clock that's his brother.] We could collab, if you want him involved too. That'd be fun!