The result of such an approach is to invest the sculptures with greater psychological energy. The viewer finds it easier to gauge the state of mind of the characters and therefore understands the larger story at work: Daphne's wide open mouth in fear and astonishment, David biting his lip in determined concentration, or Proserpina desperately struggling to free herself. In addition to portraying psychological realism, they show a greater concern for representing physical details. The tousled hair of Pluto, the pliant flesh of Proserpina, or the forest of leaves beginning to envelop Daphne all demonstrate Bernini's exactitude and delight for representing complex real world textures in marble form.