A very interesting and atmospheric game, especially because of how the root object was used. The core mechanic is really engaging, and the tree transformation effect is fantastic, even though the game felt a bit heavy at times. At first I thought it had frozen, but I guess it was just loading everything.
My only minor criticism is the music. It's relaxing, but it gets repetitive after a while. I think you could have found something more fitting for the overall experience.
That said, great work and congratulations on a really well-made game!