So... I'm gonna be really honest, here, because you seem genuinely interested in reviews... And I will do my best to present this in what I hope is a constructive manner.
I am all for creative and unique roleplays, and while the set up for this one is very well done and your writing is lovely... I have to say I would not be remotely interested in this if I were looking for a new story to join. Frankly put, it sounds like it would be boring as all heck. There's no real room for development... No depth or drama or emotional investment. I mean... One or two paragraphs is one thing... But post after post of trees and plants internal monologue and introspect about the sun or photosynthesis? It's literally watching grass grow.
I think you have the makings of a great GM... But if I were you I would probably consider a broader and more social form of storyline/genre for your next project... Something a little more interactive and exciting to write?
Best of luck!