An expressive cloud image often requires not only striking clouds but also context for them as well. The Canadian sky here is filled with soaring trails of feathery clouds, given contextual thrust by the ridge of massed pine trees that sweeps across the frame below them. This was a difficult image to make. I had to shoot through the window of a moving train, and the ground level context was almost always distracting or irrelevant. I had only a couple of seconds to link these clouds to this soaring ridge of pines.