Does Guangzhou Haiyan Cup calligraphy require traditional Chinese characters?

No need.

Haiyan Cup is a calligraphy competition for teenagers in Haizhu District sponsored by Haizhu District Education Bureau and hosted by Haizhu District Children's Palace. It aims to further promote the process of aesthetic education in schools, cultivate students' artistic expertise, improve students' healthy aesthetic taste and humanistic quality, and enhance teachers' professional ability and creative guidance ability. With the theme of "Painted Yangcheng in Mo Yun", we create healthy, contemporary and artistic content that can reflect the age characteristics and life interest of students.