Looking back through my library of photos with my tele-teacher yesterday, I realized that an awful lot of my photos have an awful lot sky in them. My eyes are drawn to the sky and the clouds.
It really goes against the grain to crop them out of the photos, either in camera or in processing. Yet as my tele-teacher showed, over a slow remote control connection, cropping out the sky is just what I need to make more powerful compositions.
Maybe it comes from being born with a Mediterranean soul in cloudy old northern Europe. One consolation is that a lot of those old Dutch masters seem to have had a sky thing too.