A magnificent sister of battle woman stands resolute in front of a stained glass window, her striking symmetrical face framed by dark eyebrows and reflective eyes highlighted with delicate mascara. She dons intricately designed sci-fi nun armor, reminiscent of the iconic Warhammer 40k style, complemented by medieval steel elements. The setting features majestic marble walls with dust particles dancing in the dramatic, chiaroscuro lighting, casting a halo-like rim light around her. The scene, captured with a professional impressionistic brush reminiscent of Waterhouse, John Constable, and Jeremy Mann, exudes a classical yet modern aesthetic. This high-detail, majestic image draws from styles trending on ArtStation and CGSociety, forming a harmonious blend with the fantastical elements of Studio Ghibli and the atmospheric storytelling of Makoto Shinkai. The painting conveys dynamic motion and an otherworldly aura, ensuring all elements are seamlessly united in an artistic masterpiece.