An awe-inspiring 3D rendering of a mythical ancient Japanese samurai mask, adorned with majestic horns and fierce teeth, exudes anaura of terrifying power and grandeur. Crafted with Unreal Engine 5's cutting-edge technology, this epic mask is illuminated with dramatic lighting that accentuates its intricate details and realistic textures. The mask, resplendent with gold inlays, silver highlights, and adorned with precious rubies and jade, is the epitome of artistic perfection. Every curve and line of the composition is meticulously balanced, creating the most beautiful and detailed image ever conceived, captured in UHD HDR 18K resolution, a testament to the infinite attention to detail in this extraordinary visual masterpiece.