Joint postcard poster

Design a "Little Prince" x NASA co-branded postcard. The picture combines the classic image of the little prince standing on a small planet looking up at the universe, with NASA aerospace elements such as rockets, astronaut helmets, earth, moon, star map coordinates, mission badges, etc. It is a natural combination and is not a simple collage. The overall look is like a collectible commemorative postcard, with a sense of fairy tale, space exploration and retro paper design. The color scheme is cream white, midnight blue, starlight gold, and foggy gray blue, which is exquisite, high-end and restrained.