Hmm.. this is clearly a C17 map, but it doesn't quite feel that way. That's a very good thing! I don't know about the trash comment. There's too much trash in maps. It's become the next barrel/pipe. keep working on your lighting and geometry and add detail in ways other than throwing trash around. good work so far.

The architecture looks quite "superclean" but it's handled with skill. It looks a bit Japanese to me. Don't ask why, I don't know.
What I miss is a visual focal point, a little surprise. You could have used some stronger colors and contrast inside the building.

The streets seem a little too "clean", add some trash and I think we'll have a winner.

The light_environment is not quite right. I can't decide whether it's dusk, dawn, or a foggy midday. Either turn up the outdoor lighting or dim it to mimic the fading light of dusk.

I haven't played it (yet?) but looking at your screenshots I have a few comments.

Screen #1: I like the buildings, how they aren't as wide as they are long, the way you enter the one in the foreground (although what's with the ropes, how do you get in?), as well as the details/extrusions on some of them. They seem unrealistically thin though, looking at the size of the door(s) versus the windows versus the depth of the building, one room would be even too big to span the entire width of the building and it'd have windows on two sides. Also, the street looks rather empty. You could probably have used a bit more clutter. Finally, what's with the streetlights lit up midday?

Screen 2: I like the mood here, it seems like one of those misty, cold, foggy afternoons.

Screen 3: That's a pretty cool building, but why does that mist/fog seem so centralized in that one little area? I don't see it anywhere else.

Screen 4: Why does the road get brighter all of a sudden? Fog, or a seam between the level and skybox? Looks nice, but again I don't get why those porch lights (which look like they're streetlight models for some reason) are on..

Screen 5: Nice area, albeit small; although it bugs me that it would seem you literally copied and pasted the decals from the wall to that pillar, they all overlap in the same way.

Overall, I like the cold feel and some of the architecture (even if it's rather illogical in some ways), although I think it could have used a bit more detail in the streets and some more thinking out (why are there two doors next to each other that lead to the same place?; why are the porch lights on?).

Nice effort nevertheless; you ought to post your next map's screens here a bit early if you'd like some helpful suggestions that you can incorporate into your final release if you desire.