With waterfalls, it is hard to follow the rule of thirds because the falls would make the shot too "heavy" to one side. But I actually think there is some "thirds" in this one...because of the rocks and their placement. All I know is that I always wanted this shot, but there was a log in the way for years....but it finally got washed out and I got to the falls as quickly as I could so I could take this before another tree fell.