Selûne, goddess of the moon from Forgotten Realms, depicted in a darker and more solemn aspect. Tall and ethereal, pale silver-blue glowing skin, long flowing white hair tinged with shadows, silver eyes reflecting sorrow and wisdom. Wearing deep midnight-blue and silver robes embroidered with fading stars and crescent moons, jewelry shaped like twin moons. A faint silver halo glowing behind her, contrasted with tendrils of shadow creeping at the edges, symbolizing her eternal conflict with Shar. Standing on a celestial battlefield of starlight and darkness, moonlight breaking through swirling shadow. Highly detailed, ultra-realistic dark fantasy art, cinematic and mystical atmosphere.