Beautiful Grand Canyon view, excellent color saturation and little puffy clouds, nice framing of the side with the tree. Just one minor nitpik, I think if you stepped closer to the edge, got rid of most of the tan rock on the edge that takes up a lot of the shot, and replaced it with more canyon it would improve it.
What a view indeed! The horizon line is so well defined (almost too well defined). It looks like two separate photos - fourground and then the sky. I'm glad the tree is there on the left to keep it together. (Hope that makes sense).