More clouds

Being fascinated by clouds and the desire to paint realistic clouds, I am trying yet another cloud study. This one unlike the rest is from a reference photo. I have been driving to and from work with my camera. When I see an interesting cloud formation with interesting lighting I snap a shot of it. This is my reference photo.

This is my work on progress. I am going to let it dry because my highlights seem to be getting absorbed by the blue contrast.

Keep in mind this is just a study. It is on a 6x8 canvass board. Had this been an attempt at a real painting I would have broken out the proportional dividers and done it proper. Will post more as it is done.