Don't Panic, Hitchhiker's Guide, sci-fi, humorous, colorful, intricate, tattoo design, alien landscapes, planet Earth, Magrathea, Vogon Empire, Heart of Gold starship, Marvin the Paranoid Android, Zaphod Beeblebrox, Trillian, Ford Prefect, Slartibartfast, Prostetnic Vogon Jeltz, robotic, mechanical, metallic, neon lights, circuitry, wires, glowing blue lines, stars, galaxies, space travel, adventure, friendship, comedy, satire, futuristic, retro-futuristic, 80s vibe, vibrant colors, bold lines, detailed textures, dynamic composition.