This is excellent, and I can only imagine the time involved. I also like your legend of the city’s founding, in particular that no one knows for certain if it’s true.

The one element that’s distracting to me is the network of dotted lines running through some of the city streets. This is a very modern conceit, and it doesn’t really mesh with the elegant fantasy-medieval atmosphere you’ve created with the design and opening lore. I'm not sure what the dotted lines are for, but I find them distracting and at odds with the overall mood.

Apart from that, this is lovely, and it would make for an excellent novel or campaign setting.