The Splash, one of the best-know paintings by British artist David Hockney, has sold at auction for £23.1m to an anonymous buyer. Typical of David Hockney’s minimalist pop art style, The Splash is part of a series painted in Los Angeles and shows the moment after a diver enters a swimming pool. The sale at Sotheby’s in London had an estimate of £20m-£30m, and the painting ended up going for £23,117,000. The painting is part...