on the right track here. you should use a polarizing filter witht this image, and your horizon is too centered. If it were more to the top or bottom it would have been a much more dynamic shot. You can still fix this in the crop. Also, more sat and a little bit of curves would have made this a perfect image.
I really like the depth in this image...it almost has a surreal quality about it...I think it's all those cacti...just a nice image to look it....well done.
I like the repeated cacti. It gives your eye a kind of bounce around, without being too busy, as they are all basically the same. I like the greens and blues of the landscape as well. Beautiful sky!! 7