Capture an urban street style photo of a young woman with striking silver hair dressed in a futuristic, ethereal white dress that seems to float effortlessly. Shot in the lively streets of Soho, this scene is illuminated by soft natural light. The image exudes a vibrant yet timeless aura, reminiscent of being captured on vintage Agfa Vista 200 film, rendered in stunning 4k resolution with an aspect ratio of 9:16 to emphasize the city's vertical lines and the dress's unique design.