A majestic sister of battle stands in front of a vibrant stained glass window, her detailed armor reflecting the sci-fi essence of Warhammer 40k. Her symmetrical face, framed by dark eyebrows and subtle makeup, exudes determination. Reflective eyes reveal a story of battles won, enhanced by the dramatic chiaroscuro lighting that casts deep, moody shadows. The marble walls around her are illuminated by dust particles dancing in the detailed lighting. This scene, reminiscent of a professional oil painting with touches of impressionism, combines the influences of Waterhouse, Constable, Blinkey, Ghailan, Studio Ghibli, Jeremy Mann, Greg Manchess, and Antonio Moro. The composition holds the grandeur of trending art on platforms like ArtStation and CGSociety, capturing an intricate and high-detail moment. A second figure adds depth to the scene, both characters bathed in the ethereal glow from above. Despite its richness, the setting avoids disfigurement, maintaining graceful proportions and fine anatomy, akin to revered works of Makoto Shinkai Kyoto.