I'm very impressed! When I spawned on a wooden platform, my first thought was, "What if I jump off?" You planned for that. With only two "tilesets", you made at least four layers of environment. That's elegant!
I like how completing one plant throws sprouts out nearby, letting me expand the ground cover in whatever pattern I desire. Woodladder is a great navigation tool & 'get out of pit free' card. I used templetorch to mark my woodladders, since from far away, it's hard to tell them from the unclimbable support columns of the wooden platforms.