Astronaut in an alien landscape, standing amidst a vibrant lavender field that stretches to the horizon under a sky painted with swirling nebulae and distant stars, breathtaking sci-fi scene, masterfully crafted photography, ultra-detailed and hyperrealistic, 4k resolution, enhanced with ethereal lighting and surreal atmospheric effects, subtle artistic embellishments to enrich the dreamlike quality, cosmic serenity enveloping the scene.