A mysterious celestial female figure standing against a star-filled cosmic background, silver-white flowing hair glowing faintly in the moonlight, her face hidden in shadows for a mysterious and ethereal effect. She is wearing a black, intricate, flowing outfit that resembles both a gown and armor, decorated with glowing golden and orange celestial motifs like stars and constellations. The outfit has metallic elements, including ornate arm and leg pieces with intricate engravings. The background features a deep, vivid night sky with a luminous blue nebula, distant stars, and a glowing moon. The character's stance is majestic and heroic, her clothing and hair flowing dramatically in the cosmic winds. High detail, sharp focus, cinematic lighting, and a dark fantasy atmosphere.