Very nice, it's like a peaceful rail shooter : p
I feel like there could be more ways to encourage strategic seed planting in the early game, it feels like there's a lot of potential in the idea of planning out your looping layout but at the start you can't even complete a full loop so it feels like I didn't have a lot of meaningful choices to make in terms of planting the seeds.
But great job overall, presentation is great and I had fun playing, the concept is definitely intriguing!