I think grit has a lot to do with this. Not saying that other models aren't hardworking or determined or resilient, but Hanne is definetely top of the game. She's come back from a car accident where she needed extensive physical therapy. She's also fairly consistent with her weight and appearance. My guess is that she's a hard worker with exceptional commitment and work ethic. Also a unique face and killer genetics when it comes to ageing doesn't hurt.