Hey there! :3

Firstly, a little bit about your terrain. I really like it! You have good diversity in your layers, and a really great palette, from the grass palette to the cliff palette. They look really great together! I would just say you need to smooth it all a little more, it still looks quite obviously world edited/voxelled, and you can see the spheres quite obviously in areas.
The atmosphere of this plot is lacking. Everything on the plot looks placed - there's no purpose at all. Adding pathways, more trees, and 'decoration' to your plot (like grass, flowers, wheat etc) will help this!

Secondly, organics. You have a couple trees around the plot, but they all need some help. Firstly, the trunks you've made are a little thick for the height you've built them too. The roots are too sudden, and also lack shape; they're less roots, more like a stand at the bottom. As well as this, the leaves aren't 'fluffy' enough for the tree, or big enough - you never made branches from the looks of things, so it will have been hard to put leaves on the tree. However, it looks like you hand placed them still. You know you have world edit, made apparent from the terrain, so why didn't you use a brush to make the leaves? It makes them look a lot more natural, just make sure you have a high air percentage in the brush, and remember to always mask the air!
Eg.
//br sphere 90%air,10%leaves 5
//mask air

Check out this channel: https://www.youtube.com/channel/UCLUKySjsOfU9jcjYyFJWk2A/videos
Plutouthere is a BT member of Octovon, you've probably met him before! His tutorials for trees are great, hopefully they can help you! :3

Lastly, structure. You have a nice starting shape to the only structure you have on your plot, however it lacks in detail and depth. On the pillars under the build, you could easily add some detailing with stairs/slabs and make shapes on them, or different types of blocks to add small detail, like chisselled brick etc. The 'roof' or top of the build seems a little rushed. The shape doesn't really work in a build like this - I wouldn't have them join like that to the middle. Instead, I would have it more gradual going upwards, not every one (Hard to explain!) Or you could even turn the top of it into a tower type structure, with a pointy roof.
The other two structures you have on the plot are too small, and have no detail or depth at all.
You also need way more structure on the plot, some bigger - a large structure with lots of detailing and depth is needed to pass Aspirant. This is so that we can see you have skill in larger areas as well as small! :3

Good luck!
- Dutty :3