Nice little map. I liked the spiky theme going on and the end teleport emerging was cool too. The brushwork on the nature was quite nice.
I think my favourite room was the basement with the underlying machinery and the vore/zombie arena (even if I died there once). As stated earlier, having vores kill off zombies is always a treat. I also liked the crucifixion surfaces the zombies were against.
Some of the secrets almost made my life harder than not picking them up, as discussed earlier here. Although it was a bit annoying, especially the vore/RA secret, it was still more fun than annoying.
The first puzzle took me an embarrassing amount of time to figure out, and my first demo is entirely about trying to figure it out, so consider skipping the first demo. -_-
I think I agree with negke that the level felt a little bit too packed with monsters and thus cramped.
Congratulations on the release. To sum things up, I'm glad to have played it. If I'd rate this in Quaddicted, I'd rate it maybe a 4/5.
Demos
here (VkQuake, skill 3, 12:27, 140/155 kills, 3/5 secrets, one death)