I like the way the music box slows down. I assume you did that to imitate how wind up music boxes will slow down as the wound part begins to reach its resting position again.
I also liked the chord progression in Keep it at bay. Very cool! It was also reused in Cute trick and the finale and I want to know why for storytelling purposes.
I would have liked more description on the theme connection. Just simple stuff like why you chose specific instruments and how they fit the setting to you. That kind of thing makes music more engaging for me. It never hurts to add IMO.