A high-quality 3D portrait rendering of a ghoul standing vigilant at the gates of Hell. The skull burns with an infernal glow, with eyes that smolder a radiant crimson. Its tall, slender frame is a mesmerizing display of intricate skeletal detail, draped in tattered rags that hint at a long, forgotten past. In the background, intensely detailed flames dance and flicker, casting an ominous, fiery glow. The scene is steeped in the dark fantasy horror genre, illuminated by dramatic and cinematic red lighting. The atmosphere is one of chilling intensity, with a soft-focus effect that adds an ethereal quality to the ghoul's presence. The depth of field and aperture create a hauntingly vivid vision with artful composition elements reminiscent of works showcased on ArtStation.