Identify the factors assessing the existence of employment relationship?

Emma Emma, the Makeup Artist: Emma's interest in makeup began in her teenage years. After training at a prestigious makeup school in Paris, she returned to Halifax and quickly became a sought-after makeup artist for weddings and events. She occasionally teams up with other artists for large bridal parties. She's meticulous about the products she uses and has built an impressive kit over the years. Clients are charged based on the event, and Emma also offers makeup workshops She manages her bookings and constantly updates her skills through workshops and online courses.