Adobe Photoshop is a graphics editing program developed and published by Adobe Systems Incorporated. wikipedia.org

Adobe Photoshop Lightroom is a photo editing and management computer program developed by Adobe Systems for Windows and OS X, designed to assist users in managing large quantities of digital images and doing post production work. Lightroom combines photo management and editing in one interface. wikipedia.org

Image editing encompasses the processes of altering images, whether they be digital photographs, traditional analog photographs, or illustrations. wikipedia.org

Portrait painting is a genre in painting, where the intent is to depict the visual appearance of the subject. Beside human beings, animals, pets and even inanimate objects can be chosen as the subject for a portrait. wikipedia.org

Photography is the art, science and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor or chemically by means of a light-sensitive material such as photographic film. wikipedia.org

Digital photography uses an array of electronic photodetectors to capture the image focused by the lens, as opposed to an exposure on photographic film. The captured image is then digitized and stored as a computer file ready for digital processing, viewing, digital publishing or printing. wikipedia.org

Image editing encompasses the processes of altering images, whether they be digital photographs, traditional analog photographs, or illustrations. wikipedia.org

Page layout is the part of graphic design that deals in the arrangement and style treatment of elements (content) on a page. wikipedia.org

Photo manipulation is the application of image editing techniques to photographs in order to create an illusion or deception (in contrast to mere enhancement or correction), through analog or digital means. wikipedia.org