Looks quite nice... old-world captured pretty well. I'd be interested to see the demographics, but that's just my curiosity.
I don't know about the civics of the place, but I'd make the area west of the markets and Ostler's a little bit denser, as the courtyards seem a bit large- though that's just nitpicking.
Marvelous work all around. Feels lively, especially the Waterfront.