Zara Tindall appeared happy and relaxed as she headed to the Cheltenham racecourse on Thursday with her mini-me daughter, Mia.The mother and daughter duo looked stylish for the day at the Gloucestershire racecourse, with the 41 year old royal opting for a chic navy coat, which cinched in her waist with a thin black belt. Zara, who is the daughter of Princess Anne, also wore a deep purple blouse and straight-leg black trousers and boosted her height in a pair of towering stiletto heels.