It seems this picture was sent to Fiore Dago (who runs the fabulous @katebush_thecollection on Instagram) by an Elliot Moody, who wrote with it:
"I work in a photographic studio and this was in our office. This Polaroid was supposedly found on the floor after a shoot many years ago. They saved it. I can't tell you much about it other than it was shot at ‘The Worx Studios’. It was found on the ground after a photoshoot. Way before I started to work there. It was in our office and knowing my father and me were a big fan. I have now given it to my father as he is the person who introduced me to the amazingness that is Kate Bush. I thought you might find it interesting!"
I believe the picture was dated to circa 2005 when it was originally posted :)