Nicole Kidman felt incredibly special on Sunday as she was treated to a sweet surprise from her daughters Sunday and Faith.The Big Little Lies star's youngest children had brought flowers for their famous mom on Mother's Day – and she was more than made up.Taking to Instagram, the Hollywood star shared a beautiful photo of herself holding a large bouquet of roses, alongside a heartfelt message that had been sent via her children's school. VIDEO: Nicole Kidman unveils stunning hair