Ultra-detailed portrait of a stunning humanoid alien female. She has a smooth, hairless head with elongated, graceful facial features and large almond-shaped eyes. Her skin resembles the iridescent inner surface of a seashell — soft pearl-like material with subtle color shifts between champagne gold, silvery lavender, and ocean blue. The skin is not just shiny, but softly diffused, like natural nacre (mother of pearl), reflecting light in a fluid, organic way. Thin, sculptural ridges flow along her face and neck like natural growths or cosmic carvings, adding to her elegant alien anatomy. Her ears are elongated and slightly pointed, with a bioluminescent glow on the edges. The background is a soft cosmic mist with floating light particles, evoking a serene interstellar environment. Her expression is calm, intelligent, and mesmerizing — an embodiment of otherworldly grace.