Create a surreal and psychologically unsettling creature that instills fear not

Create a surreal and psychologically unsettling creature that instills fear not because it is terrifying, but due to its uncanny appearance. The creature has the body of a human, draped in a tattered, worn-out robe that adds to its eerie presence, but with the head of a horse. The horse head should be unnervingly realistic, with detailed features like glossy fur, large expressive eyes, and a powerful jaw. The human body, partially obscured by the robe, should be slightly distorted in a way that feels unnatural, adding to the discomfort. The setting is an eerie, fog-covered field where the creature stands still, its presence evoking an eerie sense of dread and unease, as if it doesn't belong in the world.