Laaaaaaaaaaaawl...

Nice one man.

Nery Vice!

Balance: Obviously a balanced map team wise, it's symmetrical and doesn't have to worry about being unfair to one team. However, the vertical map style gives large advantage to the soldier that is above everyone else or the pyro above mobs. However, with the original design, it has to be expected so I can't take off a lot there.
Design: The hallway lighting from the floor is an excellent idea, and it adds to the uniqueness of this map, the one bone I have to pick is how bland and blocky the map is. You may want to round the roof and platforms if it is possible.
Fun: Like I said above, it's an original map and leads to some very entertaining games. Not much else to say.
Gameplay: Gameplay wise, the vertical advantages are the only problem, the map looks like it will play very well. Good work.

Keep this to the club.

I have this render on my computer.
1, you took out the logo of the person who made the cut.
2, you didn't do anything to the spray, not even a border/background.