Backyard Cloud

The other day we saw this huge low cloud from the backyard. I thought the cloud had a lot of subtle tone variations in the whites plus was just huge and low to the ground. From where we were standing it just seemed overpowering. The opening photo was a 4 shot horizontal panorama. Shot with a Canon EOS1D MkIII, 24-105mm f/4L @ 105mm, f/10, 1,2000 sec, -0.33 exposure compensation, ISO 400. The other shots were just detail photos.