Derelict Wallpaper

J had a bad throat so wasn't interested in leaving the house. I wanted to take a drive and he gave me directions to a place about 5 miles along the coast, a graveyard at the edge of a little beach. The weather let down its lead curtain before I got halfway there, and I took a wrong turn, drove for a couple of miles down bumpy narrowing boreens, got to the sea (minus graveyard and beach) so just turned round and drove back. On the way, I decided to check out this derelict concrete shell of a building (possibly a not-too-old school) and I found this, presumably recent, decor.