They look good Ilanthar.
Here's one thing I noticed over the years doing 3d versus 2d illustration...
When you create a map or scene in 2d, you draw only that much detail that you need for what you can/will see in the finished rendering.
With 3d, there is the pitfall of doing far more detail than will actually be seen in a rendering.
Especially with a large city - to fit all of it into view, you generally have to be fairly zoomed out and as such much detail won't be visible from that distance.
Unless you are going to be doing closer in renders of streets maybe.