A first for me today: I'm filing this under Digitally Manipulated because I have messed about one heckofalot with the original image of Rowntree Wharf in York that first appeared as Leaning Tower last week. And so much for my crowing that I do not record my procedures: Since I am not used to this I have explained it, in reverse order - -
Version 1 is the final result. It is V2 that has been Gradient Mapped (metals palette).
Version 2 is V3 subjected to Polar Coordinates (Filters > Distort > Polar Coordinates).
Version 3 is V4 that has been pinched (Filters > Distort > Pinch). I think it works particularly well in vertical format, btw.
Version 4 is 4 versions of V5 - original, flipped horizontally, flipped vertically and double flipped. After assembling the four I flattened the layers before proceeding to V3.
Version 5 is the working original for this set, though of course it began as a colour image and has been desaturated, turned into a negative etc etc etc..............
I shall try to find something 'normal' for tomorrow.