Great Responses...
-Shadows: Actually the entire area behind you is empty, and haven't cascaded the sky to cover the area yet, so not fully lit.
-Texture & Wall: I've been trying to find a better texture becuase I do realize that it is a bit too much, and the wall structure is slanted at a 10-15 degree angle, looks better from another angle (but will try to improve)
-Pipes and water: a grand plan, didn't think to implement it, thanks habboi!
-Smoke From the chimmnies: I was actually planning on this, but haven't reached that part of the map yet.
Future ideas - Going to have walkways and tram support beams, kinda like those supports used in sky lifts. And was thinking about overlooking part of Black Mesa but use smoke and mirrors and scale it down, so that it looks like you viewing a far distance but not. (Any of these sound good?)