Hey there :3

Firstly, terrain. You have alright terrain, although it's a little bit basic. You could have some more interesting areas on the plot. Organics wise, I think it'd def benefit you to search up 'Plutouthere' on YouTube and check out his tree tutorials!
Lastly, structure. You need way more structure on this plot, especially to rank from Novice to Aspirant.

Good luck!
- Dutty :3