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

Adobe Illustrator is a vector graphics editor developed and marketed by Adobe Systems. wikipedia.org

Character creation (also character generation or character design) is the process of defining a game character or other character. Typically, a character's individual strengths and weaknesses are represented by a set of statistics. Games with a largely fictional setting may include traits such as

Digital painting is an emerging art form in which traditional painting techniques such as watercolor, oils, impasto, etc. are applied using digital tools by means of a computer, a digitizing tablet and stylus, and software. wikipedia.org

An illustration is a displayed visualization form presented as a drawing, painting, photograph or other work of art that is created to elucidate or dictate sensual information (such as a story, poem or newspaper article) by providing a visual representation graphically. wikipedia.org

Realist painters render everyday characters, situations, dilemmas, and objects, all in a "true-to-life" manner. Realists tend to discard theatrical drama, lofty subjects and classical forms of art in favor of commonplace themes.

A comics artist is an artist working within the comics medium on comic strips, comic books or graphic novels. The term may refer to any number of artists who contribute to produce a work in the comics form, from those who oversee all aspects of the work to those who contribute only a part. wikipedia.org