I love the art and music! Seems like a cute idea, though sadly I couldn't figure out the rune mixing screen so I wasn't able to get very far. I tried clicking the body part and then clicking some runes, but there wasn't any feedback about selecting a body part, and then nothing to press after selecting runes it seemed?
I agree with other feedback about the movement being a bit too floaty (especially in the up-down direction for some reason) and the tree collision needing to be a bit more intuitive!
Let me know how I should be doing the rune mixing and I'll give it another go :)