Nar Shaddaa is getting close to the finish line.
I fixed the skybox in all modules and added the foreground buildings.
On top of that I followed a suggestion by Jorak Uln to add some color variation to the windows of all buildings. The effect is intentionally pretty subtle but visible in this screenshot:
Now I just need to get rid of the bright outline around the foreground buildings and maybe tweak the distribution of the background buildings some more to get more variety in the buildings closest to the player.