I'd choose dark, inaccessible, and comfortless. The other words don't really pin down the tone ("draperies"? "General"?).
<span>The subtleties of life inside a bat colony can be found in a short piece by Margaret Atwood, titled My Life Inside A Bat Colony. The main subtlety mentioned in the piece is a bat's preference for "the subtleties of dawn and dusk", as opposed to the bright sun of the main part of the day. Another subtlety mentioned is a bat's fear of being tangled in human hair.</span>
Population, pollution, living area, traffic... Things that generally impose creating home to new people, in this instance, taking a probably uninhabited place and transforming it into a town, or city.