1. A system to change an appearance of a region of skin of a first person, the system comprising: a camera configured to generate one or more images of the region of human skin, the region of human skin being allocated into a plurality of frexels; a computing device executing enhancement software to determine a difference between the plurality of frexels within the region of skin of the first person and a desired image based on a first image of skin, the first image of skin depicting one or more features to be cosmetically enhanced in the region of skin and the desired image comprising a model for visual enhancements of the first image of skin; and an apparatus comprising at least one reflectance modifying agent application element, the reflectance modifying agent application element selectively applying a reflectance modifying agent to one or more of the plurality of frexels in accordance with the difference between the plurality of frexels within the region of skin and the first image of skin to emulate the one or more features of the desired image within the region of skin of the first person.