Create a majestic full-body portrait of a devout Sister of Battle in an action-packed scene, showcasing a beautiful woman adorned in sci-fi nun armor, poised in front of a grand stained glass window. Her symmetrical face is detailed, with reflective eyes, dark eyebrows, and subtle makeup, accentuating her fierce determination. The setting features marble walls with dust particles visible in the air, illuminated by a dramatic interplay of detailed, rim, and chiaroscuro lighting from above. Capture the essence of a professional, impressionistic oil painting, reminiscent of the styles of Waterhouse, John Constable, and modern artists like Ed Blinkey, Atey Ghailan, and Studio Ghibli. The composition should be trending on ArtStation and CGSociety, reflecting intricate, high-detail artistry, with influences from Makoto Shinkai's Kyoto and other esteemed creators. The scene remains within the frame, emphasizing flawless proportions and masterful anatomical accuracy, harmonizing all elements into a cohesive, visually stunning artwork.