I beat the game! It's a bit odd that in the end, there isn't really a "cycle", despite it being themed after a circular loop, and the game even shows a circle, but the features do not actually fill it.
The way it looks once completed is confusing, because it seems like there were supposed to be four different layers, but there aren't. There are only three, but they're organized as if a fourth one is supposed to go on the bottom.