Alright, looks good. Nicely navigatable. Do you have to clear every room before descending, or is there just some kinda staircase somewhere that brings you to the next floor?

So yeah, you seem to know what you're doing so far. Do you have any experience in the arena or acting as DM for anything?
It kinda sucks that one of us will have to postpone their RP. We're prolly both pumped to do this, but there's only so many people available, and making the players participate in both simultaneously will just increase the chance of flaking. We can try doing an interest check to see if we can get enough people to run both RPs, but it's unreliable with how small the arena population is.