Futuristic Dark Samurai Portrait

Create a cinematic, dark fantasy-style portrait of a futuristic samurai. The samurai stands in a smoke-filled room, the composition a half-length portrait, his body slightly turned to the viewer's left. The samurai is dressed in {argument name="armor color" default="Matte Black"} Tactical warrior armor, featuring layered shoulder armor, small metal ornaments, engraved nameplates, belts, buckles, and woven ropes; the breastplate is printed with {argument name="chest emblem" default="Red crescent-shaped emblem with horns"} The helmet is a modern kabuto, featuring towering, crescent-shaped antlers and a circular badge on the forehead. The metal surface shows signs of wear. The wearer is also equipped with a full-coverage gas mask with dual circular filters, sharply angled faceplates, and dark visors covering the eyes. The armor is lined with richly textured black brocade fabric, accented with delicate red stitching and decorations, showcasing worn edges, scratches, dust, and realistic metallic reflections. A vertical red-orange flag is placed to the left rear of the figure, bearing blurred black Japanese calligraphy.{argument name="banner text" default="Red Sand Demon"} The rest of the background blends into the deep charcoal shadows. The overall atmosphere should be moody and cinematic, with floating smoke in the lower left, a warm red outline light on one side of the flag, and a cool-toned dim fill light on the right. There is shallow depth of field, high-detail photorealistic rendering, dramatic contrast, square composition, no visible faces, no additional characters, and no readable text except for the flag calligraphy.