British artist David Hockney has unveiled his latest creation, Bigger Christmas Trees, which consists of two digitally animated Christmas trees atop the towering chimneys of London’s Battersea Power Station. The artwork was created on an iPad and features ten minutes of captivating animation. The festive trees, a spectacle at the power station that houses Apple’s new UK headquarters, debuted on 1 December and will light up the skyline daily from 5 pm to 10.30 pm until Christmas.