I kept dying every time I loaded it up. I only could check out what I could see while in death-cam mode. Looked alright, but I couldn't tell what the place was. I don't know what an 'Octavarium' is besides a large open space with 8 sides I suppose.
the music made it though. it was really nice. -Did you make that yourself?
Looks like a fun large kill-box-ish type map, but I couldn't tell you if I enjoyed it or not cause I would die instantly.
[EDIT]: Let me put it this way: It's a kill-box, and unless it's given a major re-haul on layout or what-not, it probably won't become anything greater than that. For those of you who find killboxes 'fun' then here's another steak for the dogs. But for seasoned, cooked meat I would look elsewhere.
Consider this map a test, and maybe start a new one with more design-thought put into it. No offense, just killboxes aren't real 'levels' if you catch my drift.