A terrifying depiction of an evil oni with a nightmarish appearance, inspired by Japanese Oni culture, portrayed in a highly detailed, hyperrealistic style with splash and concept art elements. The scene captures the essence in a mid shot, showcasing intricately detailed features with deep color depth and a dramatic 2/3 face angle. Lit from the side to enhance the shadows, the colorful background contrasts with the oni's unsettling features. The creature exhibits misplaced limbs and distorted anatomy, with a disfigured and deformed face that appears nightmarishly ugly. Its mismatched eyes and crooked lips add to the horror, framed out of focus to create a grim atmosphere. Despite the chaotic composition, there's a haunting allure to its grotesque beauty, intensified by the strange body positions and mutations. The portrait evokes discomfort with its plastic-like, imperfect likeness, while subtle artistic modifications ensure that the essence of this unsettling oni remains intact amidst its imperfections and distortions.