I've made some changes, added the broken light, added the mace on the floor...played with the DOF a little bit more... How's it looking now?

Wow, its really a ton of betterness now. However, something isn't quite right with the stratas on the columns and the ambience on the pointy end of the mace should be nudged down a bit. From there, you've got a great work of art that will inspire dungeon builders everywhere.

Aha! the mystery is revealed! and I was pretty close.... swank I love the blue lights coming through the roof and at the top of the columns. I agree about the ambience on the head of the mace - maybe darker and shinier?