Wow. I can seriously see you doing some amazing children's movies or something in the future. This seems like it's going to be very whimsical and colorful and lighthearted. Finally, something that's unique without being horrible lol...well I haven't played it yet, but by what you're saying that sounds right ^_^.
Edit: I'm not that great, but I have a nice electric piano (I don't remember the model, but it's like a $3,000 piano), and if you needed anything I could maybe do something...I'm not sure how to record though. Like I said, I'm not that great, but I've been playing for about a year and I know a lot of music theory (mostly learned just by messing around and observing patterns and stuff in my lesson book songs). If you want, I could try to write a nice, simple, small piece for your game...I would love to be a [small] part of this project ^_^.
Also, if anyone does know how I can record direct audio in high quality from my piano please let me know :P.