A stunning full-body image of an exquisitely beautiful woman, portraying a sister of battle with a bolt pistol, standing majestically in front of a luminous stained glass window. She has radiant tanned skin with a delicate fleur de lys tattoo adorning her face, and her armor is embellished with intricate wax seals. Her eyes are reflective, accentuated by dark eyebrows, mascara, and subtle makeup, highlighting a perfectly symmetrical face. She dons sci-fi nun armor, depicted in a Warhammer 40k style, surrounded by imposing marble walls with floating dust particles captured by detailed, dramatic chiaroscuro lighting. The scene is reminiscent of a professional majestic impressionist oil painting, inspired by masters like Waterhouse, John Constable, and modern artists such as Ed Blinkey, Atey Ghailan, Jeremy Mann, Greg Manchess, and Antonio Moro. The artwork, fitting for trending galleries on ArtStation and CGSociety, showcases intricate and high detail, with a dramatic flair akin to Makoto Shinkai's Kyoto influences, capturing the epic beauty within the realms of both fantasy and sci-fi.