((Best quality)), ((masterpiece)), ((realistic)) landscape painting of an ancient castle nestled in a lush valley, surrounded by flourishing plants and flowers, with gazelles roaming freely. The painting should depict a serene scene, illuminated by a warm sunset glow. It should capture the soft, golden lighting filtering through the trees, creating a magical atmosphere. The artist for this painting is Claude Monet, renowned for his impressionistic style. The medium used is oil on canvas, allowing for vibrant and textured brushstrokes. The color scheme should be pastel, evoking a sense of peace and tranquility. The final artwork should be of high-definition, showcasing the intricate details of the castle, plants, and flowers. It should be a scenic masterpiece that transports the viewer into this idyllic landscape.