I liked it a lot. The art is beautiful, and the idea of constructing the different layers of the planet as you progress is excellent. What I liked the most was probably just a detail for others, but adding a new layer of music every time the planet progresses hit a spot for me.
I can see a rhythm-based game here; this way, you could mix that arrow component in rythm and keep the player focused on the evolving soundtrack.
Please come rate our game My Dear Humans 👽