Dawn French is an incredibly proud mum to daughter Billie and delighted fans on Instagram this week when she shared a very rare snapshot of her only child.The actress shares Billie with her ex-husband Lenny Henry – the former couple were married from 1984 until 2010 – and prefers to keep her daughter out of the spotlight.MORE: Dawn French stuns fans with major change to trademark bob haircut WATCH: Dawn French reveals how her husband proposedBut on Monday, Dawn reposted an image previously sent