The woman standing on stage glistens in a crystal-studded bikini. Her glowing, tanned skin shows off each of her well-defined muscle lines, the result of hours of weight training in the gym. Roya Karimi's perfectly-applied make-up and hair highlighted blonde wouldn't look out of place in the finals of Miss Universe. It is hard to imagine that just 15 years ago, she was a teenage mother in Afghanistan, married off as a child bride, before she escaped to her new life. Now aged 30, she is one of