This is a re-do from a photo of a previously painted sunrise that didn't work out. I'm still not very happy with it . . . But every time I try, I'm learning a bit more.
I tried using two brands of masking fluid here. The one from Daniel Smith was a bit globby going on, dried patchy, and tore the paper in places when removed. In a few smaller places, I tried a new Molotow masking pen. This one really works well, though it looks a bit weird being blue.