Generate an image  of a sprawling  metropolis where  organic and synthetic  elements blend seamlessly , with towering  skyscrapers  covered in lush  greenery,  their exteriors  a tapestry  of vines,  flowers, and  trees, as  if nature  has  reclaimed the urban  landscape, amidst  a backdrop of  iridescent  neon lights and  holographic advertisements , with citizens  dressed in sustainable , high-tech  attire, going  about their daily  lives in harmony  with the environment .