Wang Jianfeng is no ordinary barber – he sculpts faces of celebrities onto the backs of his customers’ heads. He serves around eight to 10 clients a month with hair creations that depict the likes of former Chinese leader Mao Zedong and renowned England soccer player David Beckham. The barber in eastern China’s Zhejiang province started doing hair art in 2015, after seeing an online video of the famous American hair artist Rob Ferrel. Wang also now spends two weeks a month giving hair art…