A

It's too cute when you find yourself wondering if you've entered a room, or a theme park; when "cute" overpowers function and usefulness is lost; when you find yourself wondering if humans live there or gnomes, humanoid bunnies, cartoon characters or any other mythical creatures; or when it's so "sweet" that looking at it makes your teeth hurt. A bit of whimsy in a room can be fun, when the room is taken over by the whimsy -- you've over done it.