Sofia Sanchez de Betak has been a busy girl. The jet-setting stylista has long been a style influencer – but last night in Paris she made it exceedingly official, launching her own fashion line CHUFY, in conjunction with her new Assouline book Travels With CHUFY. On hand at to celebrate at Colette were the famous and the fabulous, including Natalia Vodianova, Peter Lindbergh and Jean Baptiste Mondino.