Create an epic image of a vibrant cultural festival taking place in the sky, with colorful hot air balloons representing different cultures floating above a bustling fairground below.

Depict an awe-inspiring image of a cultural festival taking place in the firmament. The sky is alive with an array of colorful hot air balloons, each embodying different cultures from across the globe. These balloons are floating above a lively fairground bustling with activity below. The scene captures a true spirit of global unity, as various cultures are represented in both the designs of the balloons and the vibrant fairground activities below. You can see people of different descents enjoying the festivities, vendors selling exotic foods, and everyone under a glorious sunset backdrop.