Hi, I'm new to the group, but I already play a game and I have some ideas ...
It would be interesting a system of streets or even a brush with the texture of the street so that your city seems more real.
Another idea would be the wall system similar to the game Stronghold crusader 2 where you have a great freedom to build and give a unique face to your city.
Finally it would be interesting if it had a mod that would decrease people more so that the structures seem bigger and more real.
Sorry if I posted this message in the wrong topic, but it was the place I found most convenient to post, I hope to return thanks = D.
