I think the pink behind Minuet is a bit too much - it makes her look like parts of her are blending into the background. Also, the names are a bit hard to read due to both being a different direction and different colours. I'd highly recommend picking a nice neutral colour for behind both of them and for their names, as well as find a way to have both names face the same direction at least so they're easier to read. The sprites are nice, though, as is the idea of posed sprites for faces.
I do wonder if, instead of having the sprites as faces you couldn't just animate the sprites on the screen instead. Maybe use a zoom script of some kind so that you can zoom in on them as they do their interactions? It'd feel a lot better as the focus would be on the actual characters and not the sides of the screen.