Favorites based on unique composition, including poses for models. (There might be other reasons, but that was the most prominent.) "Consulting the rules of composition before taking a photograph, is like consulting the laws of gravity before going for a walk." (Edward Weston) "Composition is, for the most part, an effort of slow diligence and steady perseverance, to which the mind is dragged by necessity or resolution, and from which the attention is every moment starting to more delightful amusements." (Samuel Johnson)