Excellent! I'm not sure how I feel about the extra big grating to the "cathedral tubes" but I really like the over head catwalk, and I extra love the what you have that trench around the machinery in the center of the room. It really gives us the idea that this is just the upper end of a bigger more elaborate object below the deck, rather than just some doohickey the prop department knocked out and set down there.
Excellent work!
--Alex