You were wrong because “plotting” refers specifically to the sequence of events in a story—how the plot unfolds, including the conflict, climax, and resolution. It doesn’t focus on how characters are developed or portrayed.
In contrast, “characterization” is the term that describes how an author creates and develops characters. This includes their traits, appearance, and demeanor, which are key factors in making characters relatable and believable.
For example, in Disney’s "Snow White," the characterization of Snow White herself is done through her kindness, innocence, and beauty. The way she interacts with the forest animals and her gentle nature helps viewers understand her character's traits. On the other hand, the Evil Queen’s characterization is revealed through her jealous demeanor and sinister appearance, such as her transformation when she becomes the Old Hag. These traits effectively distinguish the characters and make them memorable.
So, in the context of Michael's work, his ability to embody and portray characters can be accurately described as "characterization."