Some progress. Not a whole lot; basically, I added the university buildings. And the observatory, which is part of the university. Here's a blown-up detail view of the area I just poured four hours into:

Click image for larger version. 

Name:	Naserian-05-detail.jpg 
Views:	9 
Size:	195.3 KB 
ID:	135132

And the full size map.

Click image for larger version. 

Name:	Naserian-05.jpg 
Views:	15 
Size:	1.85 MB 
ID:	135131

Todo:

- Cathedral/shrine
- Dirty up the points of interest to make them less clean and shiny looking
- More trees
- More vines
- Outlet for the pool of water
- Figure out some better color variation on the tree canopy