The purpose of creating an Orange Halloween Night Party Poster is to advertise and promote an upcoming Halloween event, using bold and vibrant colors, Halloween-themed imagery, and catchy phrases to attract potential attendees. The poster serves as a visual representation of the party, conveying the date, time, location, and other important details about the event. The goal is to capture the attention of the target audience and create excitement and anticipation for the night, ultimately leading to increased ticket sales and a successful Halloween party experience.