A female knight with long silvery-white hair cascades down her shoulders, her pale skin and striking green eyes complementing her symmetrical and angelic features. Her countenance is defined by thin and narrow features that exude an ethereal grace. She is adorned in intricately detailed armor of the highest quality, with a light silver finish embellished with elegant gold elements. The armor's design is a masterpiece of craftsmanship, with minute attention to detail. She wields a long, gleaming sword that reflects light with perfect clarity. The setting is captured in ultra-realistic 8k resolution, evoking a photographic quality with cinematic depth of field and dramatic lighting. Real shadows and soft illumination enhance the scene, achieving a movie-quality rendering with VFX post production. RTX tracing lighting adds realistic reflections and refractions, creating a sense of movement and liveliness within the frame. The composition is completed with an aspect ratio of 9:16, encapsulating a visually stunning portrait of this captivating knight.