I agree with @Robot Girlfriend below. Expansion of this concept seems open-ended and really fun, and I'll add that it's set up in a way that makes someone curious as to what will come next. It's for that reason that it's a bit abrupt, I think, besides the short round time itself. I'd like to see what direction you take this in! Level-based? 1v1, where your friend gets to control the machinating Rhite (loved the names, by the way)? Get money to last as long as you can by buying power-ups or new fairie types? Add some sound and make the fairie colors a bit brighter to contrast the background more and it would already be on the way to being a really tight package.
Thanks for this!