Retro sci-fi poster depicts spaceship, planet, city, and mountains.
描述
The image is a retro science fiction poster. The poster features a red planet with a large moon in the background. There is a spaceship in the foreground. The spaceship is flying towards a large city. The city is built on a river that flows through a valley. The valley is surrounded by mountains. The image is very colorful and has a lot of detail.
