I don't really remember how large it was; I'd guess the scene in the photo is about 40–50 feet from side to side. Rajan might be able to help; it's part of the Gullfoss complex.
Jeremy
Thanks for the info. I was not saying that a lack of scale was a problem or a negative point…
I've been in Gullfoss, a long time ago, I can figure out the scale now (and can also sleep peacefully ;-) )!