Hey there! :3

I know it was unofficial, but Scottie's review actually had some really useful things that you should take from it :3 Have another read and follow what he says.
I'm also going to add in my own opinion.

Firstly, terrain. You do need some more layers, at the moment it's all a bit flat on top. As well, I'm not sure if the stripes of coloured clay really work with this plot. If they had more relevance, maybe they would, but as a design, it's a little poor.

Secondly, your organics. The trees are a little thick and don't have much shape or curve to them - a tree rarely goes straight up. As well, the leaves could stand to be a little rounder/fluffier - they have a flat area on top, and you can see where you copied from a Vanilla tree style, which doesn't look that appealing.

Lastly structure. As you don't have any, it's hard to review xD Please add a structure of some kind to this plot ^.^

Good luck!
- Dutty :3