From the distance all I could see in this was several rows of Mr Burns at the cinema. Up a little closer it appears to me as some painted remnant from Ottoman times, and an even closer look at the top half reveals a landscape from the Kimberley region of Western Australia. I doubt it was intended to be any of those things and the apparently random nature of how it appeared on a column in an old railway workshop is a complete mystery to me, which of course adds to its appeal.