On a calm morning with great clouds in the sky, the fall colors of the aspens are icing on the cake at Oxbow Bend in Grand Teton National Park.
In addition to the great leading lines provided by the foreground rock, I also love how the edges of the rock seem to fit the mountain reflection like a puzzle piece.
While in flight with the sun directly above/behind me and a solid cloud structure below/in front of me, beautiful concentric circular rainbows, referred to as "glory", were visible.