Hey there! :3

Your structures and your organics, in my opinion, are perfect as they are. The thing that needs work is the terrain. You're going to need something a little more outstandish for an Ember plot. Your terrain as it is, is pretty simple, which is fine but, it just means that it looks like it's lacking. Plots with atmosphere are great, and with flat terrain like you have, it doesn't create that much atmosphere. I'd suggest a cliff, or atleast something more dynamic than 3 layers of grass.

Other than that, everythings great!
Good luck :3
- Dutty <3