That is some very good art *and* design work there. I wish I had that kind of talent. I have an (unillustrated) city that is very similar in my world. The bridges add a certain flair to the town. Here is a snippet from my world's atlas:

" The bridges are considered public land and a distinct culture has developed among those who make their lives and livelihood on them. Bridge culture is a unique experience to visitors, and one may spend a lazy afternoon just sipping tea or ale at one of the many vendors on the side of a bridge. "

Just a thought about how life in a bridge city would be. Again, your illustration is fantastic.