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

You are seeing an illustration quite fanciful, featuring a creature that would baffle the most learned of scholars from your time. This creature, bearing some resemblance to a calamare, dons a large conical hat, similar to the hats worn by the court jesters, only much larger and made of some unfamiliar material. It sits in a strange vessel that floats in the air much like ships sail on the sea. The vessel itself is curious too, shaped similar to a flattened gourd with spots, and appears to be supported below by magical puffs of air.Above this scene is a grand celestial sphere – much like your celestial vault – but shown here as a series of floating shapes that may be clouds or lands, suggestive of a world that is unfamiliar in your understanding. The creature seems to be navigating through this strange heavens, parting from some grand voyage. All this depiction is outlined in black and white, like a tapestry yet to be woven with colors.