Create a highly realistic landscape background in a horizontal orientation

Create a highly realistic landscape background in a horizontal orientation, showcasing a serene and picturesque natural scene. Feature a lush meadow with a variety of vibrant wildflowers in full bloom, such as daisies, tulips, and lavender. Include several tall, well-detailed trees with dense, green foliage to add depth and a natural feel. In the background, depict a few birds flying gracefully or perched on the branches, adding a touch of life and tranquility. Ensure the overall mood of the scene is peaceful and inviting, capturing the essence of a perfect day in nature with a high level of detail and realism.