What is in this image? Describe it as if you were explaining it to someone from the 15th century.

This image depicts two fantastical creatures of the night that resemble what might be spoken of in your times as demons or creatures from the netherworld. They have the bodies of bats, large wings enabling them to fly through the night sky which is visible behind them adorned with stars and a crescent moon. Their faces bear somewhat mischievous and eerie smiles, and their eyes are lively and animated. Each creature has horns on its head, suggesting a devilish nature, commonly associated in folklore with mischief or darkness.These creatures appear in mid-flight among the clouds, suggesting they are frolicking or soaring in the cool air of a starlit night. The depiction is not meant to incite fear, as their expressions host more of a playful wickedness than a threatening demeanor. Such images might be used to tell stories or ignite the imagination, similar to the mythic tales or church paintings familiar to your era, meant to instruct or entertain.