Liath, the Silver Sorrow, banshee from Irish mythology standing alone on a mist-covered hill, soft moonlight illuminating her silver-white hair and pale translucent skin, wearing a flowing ghostly gown made of fog and tattered silk, serene expression with deep gray-blue eyes, realistic cinematic lighting, ethereal mist around her, natural posture, balanced neutral scene for epoch comparison, high detail, photorealistic, silver-gray-blue color palette, atmospheric composition.