For a moment you really scared me because I've been working on a RP, and at first it sounded similar. I thought I was a day late to release my idea. 

But it quickly became your own cool thing. I like it and I must say the idea of playing an unusual being of child's imagination is very intriguing. I might be interested but if I join it will probably be the last I join besides my own, I'll have to start making decisions based on how much time I have versus how much time I take to write.

I will wait and see a few days. I believe people may have been put off if they didn't know who they'd get to be playing as until a ways into the explanation. Still, the concept you have is super tempting for a Labyrinth lover.