A full-body portrait of a devout sister of battle in an action scene, a beautiful woman in sci-fi nun armor stands in front of a stained glass window. Her detailed symmetrical face features reflective eyes, dark eyebrows, and expertly applied makeup. The setting is enhanced by marble walls and dust particles illuminated by detailed lighting, including rim lighting and chiaroscuro, creating a dramatic atmosphere. The scene is depicted from above, inspired by professional majestic impressionism oil painting styles akin to Waterhouse, John Constable, and influences from Studio Ghibli, Jeremy Mann, Greg Manchess, and Antonio Moro. The artwork is intricate and highly detailed, trending on ArtStation and CGSociety. The sci-fi armor draws from medieval aesthetics, with careful attention to dramatic composition and lighting reminiscent of Makoto Shinkai's Kyoto scenes. The depiction excludes any unwanted artistic errors such as poor anatomy or distortions, ensuring a clear and engaging visual narrative.