On the really close up picture there, with those windows fogged up, the crew can't see out it seems. It's be kind of cool to see in and see a crew lounge or crew quarters along the saucer's edge. (Though that might take a while to render and get the same level of detail elsewhere on the image). It's a great image of the ship, I must say. I'm halfway to the point of wanting to see this rendered as if it were in the shuttle approach scene from ST09 just for kicks.
It would be cool to do that, on that hand though if you really want a realistic version of that, and save on render times would be to model the interiors in a separate scene and comp them in, so you can get the depth and perspective needed.
That's my plan for the ship I'm working on, the USS Pike.