Sky Picture Of the Day. Here’s a try at getting some good grey sky.
I may have to update this after I master working with masks in Gimp (or succumb to downloading the free version of Photoshop that’s recently become available and master those masks). The point of these posts wasn’t my mastery of Gimp so this one’s going online as-is.
Alright, here’s the final. Learned a bit more about Gimp and have pulled additional detail from the clouds.