… and here’s the answer – I like the radiator idea, everyone, but I’m afraid this is what it actually is:
It’s that time of the week again (at last…) SNAP SLAPPERS! This time I’ve chosen a photo taken a few weeks ago at Kew Gardens. A lovely autumnal shot from those lovely warm autumn days we had in early October. Then I’ve messed with the colours.
…and just so you know, this is what I started with: