Prompt: A medieval manuscript painting depicting a grotesque demon with gnarled limbs, sharp claws, and a contorted face, its fiery eyes piercing the darkness, inspired by the illuminated works of Jan van Eyck, Hieronymus Bosch, and Matthias Grünewald, rendered in the style of a 15th-century Flemish miniature, with intricate details, vibrant colors, and a sense of otherworldly dread.