This is one of my all time favourite sci-fi cityscape scenes of all time. Magnificent work, perfect composition and keeps the eye looking and looking and looking you have achieved what all artists wish to achieve. Great stuff and thankyou for sharing this at DA.
I imagined the ship on a horizontal or upward trajectory, but it's downward on full view, oops! Looks like perhaps a clean industrial district leading into a residential area in the center. But Arthur C. Clarke's "Rendezvous with Rama" makes me cautious because it could be a city for robotic citizens or something!
It feels like I'm look at a Sim City city scape(aka buildings repeating several times within a city block)... In the background there are many buildings that you should have at least rotated to give the sense that they are different. The city may be repetitive, but the models seem fairly detailed at this view. The ship model itself is also nice. It just overall feels like there should be more variety.