Celestial Knight of the Starry Night

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A powerful and beautiful female knight with long, flowing white hair and striking blue eyes stands resolutely under a starry night sky. She is clad in ornate, form-fitting silver armor detailed with glowing blue celestial enchantments. In her hands, she firmly grips a massive greatsword, its blade radiating a brilliant blue, arcane light, covered in intricate patterns. Posed within a stone archway, possibly on castle battlements, she gazes forward with a determined expression, a guardian against the darkness.