Clercon! If you are going to map the whole city in that sort of detail you will go mad. I admire your courage in taking on the project. Stylewise, I like the size and distribution of the buildings and negative space, but I think it would look better without the bevel. One suggestion: Very large buildings usually (but certainly not always) have courtyards (otherwise no light inside) and space around them to emphasise their importance.

best!

Ravs