Great gameplay and balance. The skill tree is nicely implemented, and the mechanics are well done. A very enjoyable experience.
For me the next steps would be mainly focused on polish. The music is ok, but gets a little repetitive the further you progress into the and some of the SFX (speech & jump) get super annoying. The SFX for collecting & depositing leaves are nice and satisfying, and just a little more variation would make them great. I'd love to see some more animations, perhaps the fairy' wings fluttering as you fall backdown after a jump etc.
Overall a very good entry to the comfy jam. Great Work!