A striking full body portrait of a dark queen exuding a mystical aura, set in a dark fantasy realm with an underworld theme. Her piercing crimson eyes contrast against her long, flowing grey hair, cascading elegantly over her shoulders. Adorned in an intricately designed dark dress that complements her regal yet ominous presence, her skin is decorated with elaborate dark tattoos, telling tales of forgotten realms. The atmosphere is imbued with a deep, captivating darkness, enhanced by meticulous color grading that highlights the shadows and depth of the scene. This dark illustration achieves an 8k cinematic effect, drawing inspiration from deviant art masterpieces, capturing a compelling narrative of power and enigma with subtle twists on the traditional underworld queen archetype.