[WIP] Twilight island.

I like the colors alot and I think you've got the "western" feeling established. The only thing that sticks out to me is the foliage. Maybe scale it back a bit, feels like there is a bit too much atm. Maybe use some of the space that frees up to include some different assets (cacti, rocks etc.) or just generally more varied foliage. Maybe a centerpiece like a well/hangman's platform would look good, although I don't know what assets you have access to so it's hard to say.