A majestic polar bear warrior clad in a silver helmet, his portrait showcases finely detailed armor with an elaborate and intricate design, accentuated by luxurious silk accents. The scene is illuminated with a blend of cinematic and dramatic lighting, capturing the fierce nobility of this arctic knight in stunning 4k resolution. His intense gaze and the glint of metal create a powerful contrast against the icy backdrop, enhancing the mythical essence of this noble beast.