The purpose of creating a Yellow Orange Annual Sports Fest Poster is to advertise and promote a sports festival to the target audience. The poster aims to attract participants and spectators by providing event details such as the date, location, and activities taking place. The use of bright colors and attractive designs makes the poster visually appealing and grabs the attention of potential attendees. By creating a visually compelling and informative poster, event organizers hope to generate interest and encourage participation in the sports festival.