I like the style of the build. It has that cartoony feel you want in a simulator type game. It perfectly fits the low poly aspect.
Personally, I don’t really like the randomly spaced bricks on the 1st and 4th choice, but if you like it like that, keep it.
The only thing I would consider working on is the roof of the 1st and 5th buildings. Try the increase the height of the roof for the first building, and make the the fifth building have a bit more obvious overhang, along with a bit more detail for the chimney on top.
Lot’s of different patterns you’ve made, good job on that, I really like the last house as it looks like it would fit a city type build, the 3rd one is also good, you could try giving the windows a glow when it’s night, like making their material neon when it’s night, other then that, it looks really good