Hey there :3

So first of all, your terrain. I think this is the part that is letting you down the most. You have a couple raised areas, but above all, it's mainly quite flat. You've disguised this in areas, like with the pond and the nether area, but some places are still just too plain; mainly the plain grass areas. You could cover this up with the use of grass and flowers, which disguises it slightly, but I'd much prefer (And I recommend this one more) if you build some more raised areas to the terrain. You've done the hard part with the terrain under the building, now all you have to do is 'pull' from the terrain across the plot, and make it all have diverse layers.
I'm not too sure if the stone corner works. I understand it's meant to be like the four elements, but it looks like a sphere of stone with some ores in it. If I were you, I'd make the stone sink into the ground, instead of float above it - or at least make the shape more natural that the sphere, as the stone would not form like that realistically.
I think the sand area around the pond could also use some detail touching up. Things like sugarcane, wheat, melons etc - they all look nice and give it a prettier feel cx

Secondly, organics. You have one tree, which is okay. It'd be nice if you had a couple more around the plot, maybe different types of trees to match the theme of the whole plot?

Lastly, your structure is okay. I like the design and the detail. I feel like the palette may be clashing a little - the spruce logs and the brick mainly. It may look better with oak logs, just a thought.
Also, the roof looks great, but I'd add some detail to it to make it more organic. No other blocks, just make some shapes like this on the roof style:
https://imgur.com/a/Lr9Ab#0
This just makes it a lot more interesting to look at, instead of the roof layers being on the same level all the way across.

Good luck!
- Dutty :3