If I could make decent Quake levels this is how it would look. Decorated in base textures, as you can see in the screenies.
You can really flow through this level. You can work from the bottom and go right round the entire map before you get to the top level. Works really well. No problems with ammo, armour or health. A nifty litte touch is a laser gun which fires at you if you go to get the red armour.
My gripes are to do with texturing. It can be a little messy in places. (See second screen shot.) Also a red texture is used on steps and so arches. Its a nice touch but its used a little too much. To be extra picky I could say the red sky texture looks out of place. Light blue or black would have looked cooler.