It's not only fashion designers who leave their mark on a look: they'd be nothing without make-up artists and hairstylists. Odile Gilbert, one of the most creative hairstylists of all, finds herself in the greatest of demand these days. She works her fleeting, human materials into designs much as a sculptress would, borrowing from historical styles and ethnic languages of form, using feathers, earth and precious stones to fashion the most lavish of...