Glad you all like it! Gaston, that's a great method to use for ships! When I eventually get my first pirate ship I may do that.
Luis, it sure gets dusty at my house! We have road construction going on all around us, new houses being built behind us, and we recently had a remodel in our house, so there's dust EVERYWHERE.
Tim, I do like the idea of a frame. It would probably help a lot with covering a larger building.
@BP: yes, the cellophane drapes down the front and then is just tucked under. So it's easy to lift it out of the way if I need to adjust something. But this shop is mostly for display anyway, and all the pieces are held in place with sticky tack.