A captivating and realistic portrayal of an astronaut exploring the lunar surface. The astronaut should be wearing a spacesuit and standing on the moon's rocky terrain. The background can be the vast lunar landscape with craters and the Earth visible in the distance. The lighting should mimic the natural sunlight on the moon. The camera should use a medium lens (50mm) to capture the astronaut's stance and the moon's details. The shot should be a medium shot, showcasing the astronaut in the lunar environment. The image should be rendered in high resolution (4K) to capture the textures of the moon's surface. (lunar exploration:1.3), (rocky terrain:1.15), (vast lunar landscape:1.1), (natural lighting:1.15), (medium lens:1.15), (medium shot:1.1), (high resolution:1.2)