Creating an ultra- high- resolution digital art piece with intricate detailing, exhibiting a photorealistic rendering. The main focus of the composition is a sinister horseman, his head replaced by a menacingly glowing jack- o'- lantern with an intense fiery glow, mounted on a malevolent black horse. The horseman is dressed in a dark executor's robe. The setting is an eerie, atmospheric backdrop, with an ambience of darkness only broken by some underlit particles floating in the distance. The horseman and his steed are surrounded by stark flames contrasting with this gloomy environment. In the far distance, a foggy purple tone blankets a cryptic forest under a dauntingly large and bright orange moon. This piece, with its feelings of dread and intrigue, appears haunting yet captivating. The rendering is in a lifelike quality showcasing the capabilities of digital art skill imbued with high- quality computer- generated imagery (CGI) nuances