Tin factory

I'd been walking along the river Caldew and came to the back of the tin factory. Noticing the many tins on display in an office (with barred windows) I thought they looked interesting but struggled to get a good shot with just iPhone camera (and also worried the security might see me on CCTV peering through the window and come after me).
Only later did I realise that I had inadvertently captured the reflection of a magnificent sky we had thisafternoon minutes prior to sunset, set against the chimneys and industrial units across the river.