Whether using a digital negative or an object, the Cyanotype process relies heavily on negative spaces created by the shadow of the objects in play. They are beautiful on their own although I often work the image further, mainly with pastel and cold wax. John Herschel invented the Cyanotype process to make blueprints of architectural drawings in 1842. A few years later, Anna Atkins created an entire body of Photogram prints, made by placing plants she collected on photosensitive material and exposing them to light. In the 1020's Man Ray made Photograms he called, what else but... "Rayographs".