Well done on both accounts, David. I wouldn't have guessed Mesa Arch right away, so you have achieved one objective (but, then again, I've never been, although I've seen hundreds of the "standard" view).
You have also created dynamic images with lots of movement, texture and 3-dimensionality. With the cloud and orientation of the first photograph, it really captures my imagination and gives me the feeling of the edge of the Earth or some great chasm.