I am currently working on a futuristic-ish openworld game on Roblox. Right now I am working on the environment to be big, beautiful, detailed and unique. Here is my progress as of this post:
The picture you show us is really amazing! I think it looks flawless! If we had more pictures as @Krunnie said we could help young little more on finding issues.
It looks pretty great, but as stated before, we need to see a few more pictures.
Anyways, I love the unique colors you’ve used. In my opinion, it does look futuristic-ish.
Maybe you could add rivers, and a little more vegetation.
Overall it looks great!