Where the American West had Georgia O’Keeffe, and Normandy, of late, has David Hockney, Cornwall had Alfred Wallis, whose pictures of his native British coast capture the Cornish seascape windswept and serene. Wallis, a fisherman and scrap merchant, first picked up a brush at the age of 70, following the death of his wife. He painted ocean scenes and hung them around his cottage as reminders of the traveling he’d no longer be able to do in old age. As much of the world braces itself for more lockdowns, a new exhibition at Cambridge University’s Kettle’s Yard puts the modernist painter’s work into sharp yet comforting focus. —J.V.