Very detailed, though i wish that some of the rooms were named more than just "gallery" and "storage" :A
Also, I wasn't really paying attention but the keydoor with a blink laser pointing into it looks a bit mean. :p
I felt the jewel density (per table space) on the last floor was a bit much, but everyone has their own opinion. Having to go through sewers again to get out was a bit slow paced.

On second floor theres a pressure pad two spaces above a scan door that prevents the hack from moving to the scandoor, might want to avoid that for your next map.

Overall well done.

Quarter Diamant and the palace level had a child and this is it. This level is awesome enough to be in the game. You nailed it. You got every element that makes Monaco great in here.