I encounter this scene on my daily walk. The small camera I bought to capture scenes such as this finally paid off. Within seconds the sun moved behind a cloud, and the drama was lost. But my trusty camera had captured what I was looking for, and I was able to supplement my memory with the photograph as I painted. I guess I should be saying "as I drew," since pastel is considered drawing, not painting.
I succeeded in keeping this painting loose, in part perhaps, because I was hurrying to get it ready for a show.