I love the classical vibes i get from your map, and that attention to detail is amazing! I swear if this was a real place, I'd love to get lost in its streets. Especially if i can get to see that cathedral from the inside.
Since I assume it has some Carthaginian roots (as a commerce jewel of the east), is there a western counterpart in your world? Or is this the hub of merchants from a few separate cultures?