A captivating full body portrait of a dark queen exuding a mystical allure, set in a shadowy fantasy realm with an underworld theme. Her piercing crimson eyes are framed by long, flowing grey hair. She wears a dark, intricately designed dress adorned with arcane, swirling tattoos that hint at ancient power. The scene captures a deviant art masterpiece with expert color grading, exploring a richly dark and atmospheric illustration. The 8k cinematic effect enhances the details and textures, drawing viewers into a mythical world shrouded in mystery and elegance.