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

This drawing, which one might compare to an illustration in a book of fables, depicts a whimsical scene featuring fantastical creatures stacked atop one another. At the top, a knight-like figure, perhaps a heroic squire preparing for battle, raises a pointed sword while holding a round shield. This shield is blank, lacking any coat of arms or emblem that knights of your time would typically bear.Beneath this warrior figure is a collection of curious animals unlike any real creatures seen in your world. The bottom features two large, bear-like creatures, one carrying a wide banner. Above them, uniquely, is a lean creature that resembles neither beast of the field nor bird of the air, holding a wedge or piece of the aforementioned banner. Each animal presents a cheerful demeanor, suggesting a moment of celebration or announcement, rather than aggression.Above this entire assembly, the word "WARSAW" is boldly inscribed, which could suggest a place of significance, perhaps akin to a kingdom or a city-state relevant in this peculiar tableau. Each aspect of the image is drawn in a simple, unadorned line style, focusing on conveying the scene through basic forms and expressions rather than detailed realism. Such images are sure to provoke the imagination, likely serving as a moral, lesson, or simply a fanciful tale to entertain and instruct, much like the illuminated manuscripts or public frescoes familiar in your time.