A nightmarish vision of an evil Oni inspired by Japanese folklore, depicted in a portrait view, showcasing high detail and 8k hyperrealism. The splash art concept highlights a mid shot with intricate detailing, vibrant color depth, and a dramatic atmosphere. Captured at a 2/3 face angle, the side lighting enhances a colorful yet haunting background. Retaining elements of nightmarish deformity and exaggeration, the composition plays with disfigured features, creating a surreal and unsettling image that reflects the chaos of a nightmare. The representation emphasizes the twisted and malformed aspects, while maintaining the core essence of an Oni’s fearsome presence, inviting a sense of dread and fascination.