Rhiannon, The Celestial Guardian

A mesmerizing image showcases a woman with flowing white hair standing against a cosmic backdrop filled with stars and nebulae. She wears a white dress with intricate gold and teal detailing, including a belt and armguards. Her expression is serene yet commanding, with a sword subtly visible in her hand. The scene exudes a sense of power and grace, enhanced by the celestial surroundings.