Ok, your map is a great start, it just needs little details to bring it to life.
- A trim to the top of the building in the 3rd or so image - something to seal that builing in.
- Windowsills sealing the glass sections in. Make thin, dark trim for all of the glass areas, make sure they're func_details so that they don't disrupt geometry.
- Add some alpha to the grass texture on the banks of the river/lake to break up the texture a little. Check out the interlopers tutorial on displacement to see how to do this.
- Try adding env_sprites or env_lightglows to the lights outside to give them a little bit of glare. For brighter spot lights, use a point_spotlight, with the right angles for your light sources.
- I like the use of props. They seem appropriate for where you placed them.
- In this pic:
Try moving the lights into the ceiling, carving the correct dimension holes for them to sit in (they should be flush inside the cieling tilesm shineing out).
Keep up the good work. I look forward to an update.