Full body shot of a devout Sister of Battle in a dynamic pose, beautifully adorned with sci-fi nun armor, standing in front of a stunning stained glass window. Her face is symmetrical and detailed, featuring reflective eyes, dark eyebrows, and elegant makeup. The armor exhibits intricate details, reminiscent of the Warhammer 40k style, set against a backdrop of marble walls illuminated by detailed, dramatic lighting. This scene evokes the majestic impressionism of artists like Waterhouse and John Constable, with a touch of Studio Ghibli's storytelling charm. The portrayal is enhanced by dust particles and chiaroscuro effects, creating an ethereal atmosphere in a professional oil painting style. Drawing from the creativity of Jeremy Mann, Greg Manchess, and the unique style of Atey Ghailan, this piece is trending on art platforms, featuring high detail and dramatic sci-fi and medieval elements.