Underground map. I need feed back

[KingArthur]

Anyone bord? I need a little feed back on the map I made for fun. I put it together fast, so its a little empty. However, Its based off of the udnerground from stalker, I added a few things to my liking. Vents are there as an alternate route, but i need feed back on what to work on. Oviously detail and better looking light is needed, however I do like the dark feel. Creepy. I jumped a few times just testing it because of a light in the dark.

Feed back plox, suggestions too.

http://www.mediafire.com/?q3uo2f9al9kdl7s

Also i have a bug, Dynamic lights WONT show up. I have no leaks that I know of (Or hammer knows of) Any fixes?

[Frostee]

Alright, so far so good. Add some detail, more lighting, a continued tunnel system with maybe an outside and yeah.