Provide a prompt for Stable Diffusion portraying Natalie Portman smiling with a Cheshire Cat grin while holding a bunch of grapes.
cheshire cat grin, natalie portman, grapes, intricate, elegant, highly detailed, digital painting, artstation, concept art, smooth, sharp focus, illustration, art by artgerm and greg rutkowski and alphonse mucha and william-adolphe bouguereau