When the sun was setting that night there was quite a change in colors, from the gold (the first photo in this group was the first shot I took) to the pinks and blues and purples as it progressed. And right in the middle of the whole thing, the sky to the north, under a thunderstorm that had begun to gather, the sky was different yet, as seen in the third photo. I don’t claim to understand all of it, just to admire.