Good question. I don't remember. I usually use snarlygribbly's scene fixer as an almost automatic process prior to rendering in IDL, but I don't think I did with the images of West Park ward.  As to the last 2 images (the downtown apartment) I definitely did because there are a lot of down lights in the scene as 'mesh lights' that I wanted turned off. In any case, the downtown apartment doesn't have a bump map on the far wall where the blinds are but it still seems like the light is passing through the wall, lighting the texture from behind as well as reflecting back from the pelmets.