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

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

Concept art is a form of illustration where the main goal is to convey a visual representation of a design, idea, and/or mood for use in films, video games, animation, or comic books before it is put into the final product. wikipedia.org

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

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

Computer illustration or digital illustration is the use of digital tools to produce images under the direct manipulation of the artist, usually through a pointing device such as a tablet or a mouse. wikipedia.org