Architecture was still about the same, but there were some new things that looked nice (the new candle holders for example).
There was also one thing that looked really bad, the platform under the thighpads has a texture which was black for a part, there was also a dark shadow on it; it looked pretty strange.
Lighting is better in most areas now, but the lava is still a bit too dark. The whole room with the Nali looks too bright but the lava is too dark. You could try to make the lava textures 'SpecialLit' and place some orange lights above it, go to the light's properties, then to 'Lighting' and set the 'bSpecialLit' to True. This light will only affect the textures that have 'SpecialLit' checked so you can give the lava a very bright look without making the surroundings too bright.
Gameplay is better with the teleports, although I still think those round hallways are too big. It would be nice if it's easier to get in this area from the room with the flakcannon, the teleporter there is on a high platform.
One of the movers still has an ambientsound and I noticed that the flametorches in the big room can be heard in the room with the pulse rifle! I think that's because the soundradius is too high.
Bots got stuck at the flakcannon but seemed to do allright most of the time.