Visually exquisite. On that side of things my only criticism would be that you've crammed so much detail in it almost feels a bit 'toy town'. I think you must have written a checklist of 'stuff you see in cities' and double ticked all of the boxes.
In terms of gameplay it doesn't really take advantage of the Hostage Rescue mechanics as there aren't very many routes so the winner is usually decided before anybody's had a chance to worry about objectives. One more route (possibly a basement route leading from the door under the obelisk to one of the low doors in the hostage room?) would probably help a lot in this regard. That's just with 5v5 so I can't imagine how much of a free-for-all it would be with 32!