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When I see a dramatic sky I think of John Constable's cloud paintings. And as he said, "I have done a good deal of skying." He would add notes to his sky studies on the weather conditions, direction of light, time of day, and he said the sky was "the key note, the standard of scale, and the chief organ of sentiment" in a landscape painting. He often painted unusual effects of lighting by placing a light valued foreground against a dark sky. So this challenge is about unusual effects of lighting in the landscape, with a nod to Constable's studies of cloud formations. Feel free to use my photo as your reference, taken in May at Edisto Beach, SC, or use one of your own.
Please be sure to follow the spirit and the letter of the challenge.
For example, each submission must be painted after the challenge is posted.