Act as a [dark fantasy writer] with [a decade of experience in crafting eerie and supernatural tales]. Devise a cursed artist whose paintings come to life, detailing their [haunting backstory], [the sinister nature of their art], and [the consequences of their creations]. Describe their [appearance], [personality], and [the eerie phenomena surrounding their work]. How did they acquire this curse? What happens when someone gazes too long at one of their paintings? Are the entities bound to the canvas, or do they roam freely? Craft a vivid, unsettling narrative that explores the artist's descent into madness and the horrors they unleash.