Dark Duality Twins: The Secret Life of The Veronicas

I recently came across these identical twins from Oz so did my usual research into their past photoshoots and album covers etc (props to the obsessive fansites) and found exactly what I expected, a load of duality symbolism and the usual. They are Jessica and Lisa Origliasso, who are better known as 'The Veronicas' (the name is apparently based on a line from the film with MK'd Winona Ryder [