Animation is the rapid display of a sequence of images of 2-D or 3-D artwork or model positions in order to create an illusion of movement. The effect is an optical illusion of motion due to the phenomenon of persistence of vision, and can be created and demonstrated in several ways. 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

Toon Boom Harmony is an animation production software that contains all the tools required to handle traditional animation workflows, from scanning to compositing and 2D/3D integration, and has additional tools that can be used for cut-out animation style. wikipedia.org

2D computer graphics is the computer-based generation of digital images mostly from two-dimensional models (such as 2D geometric models, text, and digital images) and by techniques specific to them. wikipedia.org

The art director is in charge of the overall visual appearance and how it communicates visually, stimulates moods, contrasts features, and psychologically appeals to a target audience. The art director makes decisions about visual elements used, what artistic style to use, and when to use motion. wikipedia.org

Character animation is a specialized area of the animation process, which involves bringing animated characters to life. wikipedia.org