Shop window shadows

A friend of mine has set up a shop selling antiques and collectables, and on Saturday I finally managed to turn my intention of going into action. That was possibly a mistake since there were so many things I immediately wanted I was in grave danger of clearing out my bank account. I did exercise considerable restraint and only left with a 1930's school poster of snails, and a photo of this shadow cast on the ceiling from the window display. (I'm not sure the focus has worked out entirely here but the subject was interesting enough to get away with it, I hope)