A breathtaking full-body portrayal of a devoted Sister of Battle, depicting an intense action scene. The exquisite warrior stands proudly in front of a radiant stained glass window, her striking features perfectly symmetrical, highlighted by reflective eyes and bold dark eyebrows. Her face shows subtle, elegant makeup including mascara, emphasizing her determined expression. Clad in elaborate sci-fi nun armor reminiscent of the Warhammer 40k universe, she embodies strength and beauty. The setting is adorned with majestic marble walls, enhanced by floating dust particles and intricate lighting that includes dramatic rim lighting, chiaroscuro, and a viewpoint from above. This professional, oil-painted masterpiece draws inspiration from the works of Waterhouse, John Constable, and Ed Blinkey, blended with modern influences like Studio Ghibli, Jeremy Mann, Greg Manchess, and Antonio Moro. It captures a sense of grandeur and finesse, trending on platforms like ArtStation and CGSociety. The style is intricate, high-detail, and dramatic with influences from Makoto Shinkai's Kyoto, creating a scene that resonates with epic fantasy art without any distortions or imperfections.