Exceptional cloud-structure, Akira.
John, indeed I've never, ever seen such clouds.
Originally I was shooting twelve frames for the stitching because I found the sky looks interesting. But when I began to process the files, I found this particular area covered with three frames stood out.
Akira, where do you get these clouds and how much do they cost?
Jakov, the clouds were delivered via airmail, and you need to live in Tokyo and pay the inhabitant tax for more than thirty years to shoot such clouds!