I'd love to do a little more with Rhea when not in a sex scene.
A button prompt to get her to lift her tail would be a hot detail (like how you can spank her). Plus a toggle crouch so you can more easily appreciate the view, especially with how well you modeled her gapes. Could even have a "prone" button for when she's lying flat on the ground. Maybe allowing her to pee outside of sex, too?
Also, a "clean all fluids" button would be great!