vibrant space-themed digital art featuring a stylized astronaut with whimsical planets and bright stars on a purple background

digital art space theme stylized astronaut whimsical planets bright stars purple background vibrant illustration exploration creative cosmic fun celestial bodies colorful design modern imaginative playful gravityfree starry outer fantasy interstellar adventure style galaxy artwork science fiction joyful childfriendly lively fantastic glowing neon artistic voyage universe suit cheerful futuristic dreamy spacewalk enchanting novelty