The visuals are amazing, but the gameplay loop could use a bit more variety. The moment when the bad guys appear is also a bit jarring. I like the concept.
Edit: I wanted to give better feedback on the gameplay. I like the core element of dodging enemies and destroying the trees, but I wish there was some indicator of how much health the trees have left. I think that would make it easier to do damage while moving faster.
I think it is also too easy to just circle the planet infinitely. My game suffers from the same problem. I'm not sure how I would solve it.