I always think projects like this should only take an hour or two. I mean all I'm doing is running a filter on a photo. Of course, when you don't have a photo of the exact scene that you have in your mind's eye to hand, then the hours start piling up as you manipulate the photo(s) you do have to match.
I'll run them off on the color laser at work tomorrow. I have to be there tomorrow anyway to do, you know, work. Bah. Humbug.