I made a gigantic panorama (for no reason particularly) of the entire falls, out of nine vertical images, one side of the falls to the other. This gives me the versatility to crop into the image and make others from the just the one file. This flexibility means landscape, portrait and covershots can be pulled out, with a little thinking.
I love the way the two wonderful icy overhangs look like cuttlefish to my distorted brain.
For a more detailed take on the same fall here's a closeup -
Canon 1Dx, 35-70, f8 ISO100 with a 6stopND