ASTRID M OBERT PRESENTS - RAINBOW ROCKS with MODEL OLIVIA SANG RAINBOW ROCKS Vogue style image provides us with inspiring couture as well as a stunning, energised model. In charge of styling and concept was Petra Tielmann, and art instructions were in the hands of Riaan Kleynhans, with hair & makeup by Anja Fichtenmeyer c/o Bigoudi. Olivia is wearing a dress of designer Hannah Iosabo.