Final answer:
Costume designer is the most related art career to Phyllis' experience of creating costumes and dressing up.
Step-by-step explanation:
Based on the given information, the type of art career most related to Phyllis' experience of creating costumes and dressing up is costume designer. Costume designers are professionals who design and create costumes for various purposes, such as theatre productions, films, television shows, and other performances.
Learn more about Art careers related to costume design