I got the bigger one with the "lady" (large busted) body. She's 47cm tall! I realized with Odette standing next to my minifee that Odette really is tall and slight compared to her. I'm hoping the Rosette will be on more even ground with Odette, even if they can't share clothes.
I'll definitely be trying to get Odette's water fairy dress on her, which I think will have the best shot at fitting since it's laceup! Fingers crossed...