Create an image of the classic Russian dish 'Herring under a Fur Coat' presented on a large, flat white plate. The dish features distinct layers of ingredients, starting with a base of grated potatoes, followed by a layer of salted herring, then grated carrots, chopped onions, and another layer of grated potatoes. The top layer is a vibrant pink, made from grated beets mixed with mayonnaise, giving it a rich, textured appearance. The layers are visible from the side, showcasing the colorful and appetizing combination of ingredients. The dish is garnished with a drizzle of mayonnaise in a crisscross pattern and decorated with fresh herbs. In the background, a beautifully decorated Christmas tree adorned with vintage Soviet ornaments enhances the festive atmosphere