I suggest adding a house inside a giant tree, like a cosy treehouse (with a wood ladder to climb to the house NOT A RANGER POST IF YOU MAKE IT AS A RANGER POST IT WOULD BE WORST FOR THE DESIGN) like in these photos with wood walls, leaf furniture, and glowing flower lights. It could be part of the story — maybe a dead scientist used to live there and left behind journals or secrets. This would make the game more mysterious and beautiful