Okay, so I just played the game, I think that there is something odd with the lighting, it’s good lighting but it seems to gray for a the type of buildings in your homestore. I love the buildings though and they way it has been created.
You could perhaps take the time and see which one suits your liking if you like an outdoor homestore or one with a exterior within it. I would develop more time into adding scenery vegetation and throw bits of smaller plants, variety of trees are a good addition. This is something you could take if ever needed.
Personally, asking users for what to place on the terrain is good and all - you should gather a few images to have by your side, to get ideas from to incorporate to your build as it would help as an guide on what proper elements to place. Reference images do help with this, create both and see which one you like.