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

Thou art looking upon a drawing most playful, depicting a young lad beside a curious, large creature that bears semblance both to a fox and a fantasy beast, with the tail of a striped garment, quite like a carnival jest''s stockings. The lad is jubilant, bearing a smile wide as the harvest moon, and his eyes gleam with the spark of innocent mirth. The creature next to him, equally fantastical in demeanor, shares in this joy, its own visage curled into a tender smile which suggests a heartwarming alliance beyond the realms of natural kinship. Both are outlines, void of color, as if inviting those who gaze upon them to imagine their hues and complete the tale of friendship portrayed. This portrayal is like an invitation to a mummers'' play, where fantasies and imaginations are brought to life through simple sketches.