Beautiful, especially the one with the rainbow!
I'm not a pro but I've often been warned that having the horizon near the border isn't good for the composition. Even though the salt lakes were probably vastly more interesting than the sky (which I presume was pretty cloudless). Would be nice to zoom in on the mountains, especially with that light!
Yeah the thought occurred to me and I don't often break these rules, but one of my favorite Large Format landscape photographers often crop images this way, more of a tribute but you'll never see these kind of compositions from my other photos. Excellent observation!