Your stuff is amazing but I have some crits. The textures of the docks are out of scale.
I don't no why the concreet walls turns to green on top. It can't be. Just if you've intended some floods or something from the past.
You have some poly bug there?
This is a old city so don't forget the ditails like blunt geometrys (ther's no perfections in real world).
And dust, dirt, garbage

supid people beging for a coin

, etc.
mmm..I have a question. What is your modeling procedure?

and in what program?