This article has a picture of the art in question:
http://www.thisislondon.co.uk/news/london/feathers-fly-at-the-police-station-over-gallerys-bestial-leda-and-the-swan-7684644.html
This article has a picture of the art in question:
http://www.thisislondon.co.uk/news/london/feathers-fly-at-the-police-station-over-gallerys-bestial-leda-and-the-swan-7684644.html