Full shot of a devout Sister of Battle standing in front of a stained glass window. A beautiful woman in sci-fi nun armor, with a detailed symmetrical face and reflective eyes, dark eyebrows, mascara, and makeup. The setting features marble walls with dust particles in the air, illuminated by dramatic chiaroscuro and rim lighting, all from an above perspective. The scene is painted in a majestic impressionism style inspired by artists like Waterhouse, John Constable, Ed Blinkey, and others. The armor reflects a medieval steel aesthetic with intricate details, set in a dramatic high-detail environment trending on ArtStation and CGSociety. Avoid overly exaggerated features or distortions, maintaining a realistic portrayal with elements inspired by Makoto Shinkai's Kyoto, Studio Ghibli, and noted painters like Jeremy Mann and Greg Manchess. The setting is captivating and immersive, focusing on powerful imagery and emotion, encapsulating the spirit and grandeur typical of Warhammer 40k art.