Fall Festival Balloon Arch Backdrops in Fall Colors. The organic arch is a colorful addition to a fall festival, a harvest celebration or any Autumn celebration. Your balloon arch garland will be created in traditional Fall colors of oranges, reds, and yellows. The balloon arch is enhanced by fall leaves and other fall accents. The backdrop includes scare crows, cornstalks pumpkins fall florals hay bales and other fall accents. (May be subject to additional installation fees).