A full-shot portrait of a devout Sister of Battle engaged in an action scene, a beautiful warrior woman standing confidently before a stained glass window. She has a detailed, symmetrical face with reflective eyes and dark eyebrows accentuated with mascara and subtle makeup. Her Sci-Fi nun armor is intricately designed in the iconic Warhammer 40k style, set against marble walls with dust particles illuminated by dramatic chiaroscuro lighting. The scene is reminiscent of a majestic oil painting, inspired by Waterhouse, John Constable, Ed Blinkey, Atey Ghailan, and Studio Ghibli, with professional touches by Jeremy Mann, Greg Manchess, and Antonio Moro. The painting style is trending on ArtStation and CGSociety, blending intricate, high-detail art with influences from Makoto Shinkai and Kyoto, showcasing detailed steel and medieval armor. The composition includes two characters, with a focus on detailed and dramatic lighting from above, creating a striking, artistic impression.