I'm back on the subject of ghosts again (I'm never far from it).
Here is an illustration I made many years ago with an old Adobe product called PHOTODELUXE, do you remember PHOTODELUXE, it was usually free with printers and scanners. I really liked it, it was simple and straight forward.
I created the little ghosts with an erase tool and the large ghost was created from photographs I took of a friend who modelled for me. The background was the interior of an old house that was being moved from one of our downtown streets. I still like the composition.