High-quality, ultra-detailed CG unity 8k wallpaper depicting a serene winter landscape with a cozy house nestled among fallen leaves, showcasing rich winter colors. The scene is captured with award-winning photography techniques, featuring a delicate bokeh effect and a masterful use of depth of field. The HDR rendering highlights the subtle interplay of light and shadow, enhanced by gentle bloom effects and subtle chromatic aberration for added realism. The photorealistic quality is evident in the meticulous attention to detail, bringing the tranquil beauty of this winter wonderland to life.