Now this is looking good overall. I'm not a big fan of those purpleish lights in 3rd and 4th pic. Maybe change them to green or cold blue.
But as I said, It's looking nice and I'm looking forward to test it.
I like the overall lighting, what game & gamemode is this for? I'm going to assume this is for Counter-Strike: Source though.
my feedback so far would be to make the lights in the 2nd room not so bright, they look too small to light the whole room like that. Also in the first screenshot see if you can make the spot light big enough to fit the whole light model instead of having two if you can
Just my thoughts so far, other than that I like your color choices!