8k ultra realistic depiction of a samurai warrior in a full-body pose, wielding a majestic golden war flag banner, adorned in intricately detailed yellow and black armor. The scene is brought to life with ornate cinematic lighting, showcasing high-definition, vibrant illumination that captures every fine detail. This hyperrealistic portrayal, trending on art platforms, is rendered with the precision of Unreal Engine 5. The setting is a dark, dramatically lit war-torn environment with a reddish hue, filled with smoke and glowing embers. Lumen reflections add depth and texture, while a subtle depth of field enhances the photograph's focus.