Since some patches back, I am unsure how long, clouds look absolutely awful at night. They are unnaturally bright, even when there is no moon, and have very weird coloration with low quality variation. Due to this the night sky is always too bright compared to the environment below making the nighttime skybox very ugly unless it is a clear night. Which I am not actually sure is possible with the new cloud system, it seems there are always clouds. Can't remember when I last saw a cloudless sky in-game.
Uploading a video that shows what I mean. Also linking to the same video on Youtube that will have higher quality. once it is processed.