I am gonna go 4 stars too. I think there is a ton of potential in how you build. It's time to take it from beginner/low detail /unrealistic into high detail. Study Kip, Inan or Obelics.. You are on your way!
I love your work with the hills and little valleys with the bridges atop. Awesome job! But I have to say that you did use too many "big-ass landmarks" in my opinion. It loks a bit out of place in such a small city.
But nonetheless, keep it coming. You really improved your skills, too!