Hey there! :3

Firstly, terrain. Your terrain around the outside is all a bit random. I think you need some grass on top of the stone - will make it look a lot more natural!
You should also use water instead of stained glass in this case - it works with some plots, but this plot is too small, and it doesn't really fit the style that works with stained glass water.

Secondly, organics. You have nice trees, they're kind of like willows! It'd be nice if you had some more on your cliffs/hills
1) to fill space
2) to add atmosphere

Lastly, structure. Your small house is lovely!
Your tower, however, needs some improvement on the detailing. Because you built the frame on the same layer as the wall block, the detail sticks out too much and doesn't suit the structure. Build a frame like this: https://imgur.com/ONsoRxh
Notice how the log is one layer out from the wool? This adds basic depth, and also allows for easier detailing.

Good luck!
- Dutty :3