A vibrant illustrated poster for a Back to the Future themed...

A vibrant illustrated poster for a Back to the Future themed quiz. A stainless-steel DeLorean time machine with gull-wing doors open, glowing flux capacitor visible, blue lightning crackling as it reaches 88 mph, fiery tire tracks on the ground. Background shows a stylised 1980s town square clock tower struck by lightning, with a swirling time-travel vortex in the sky. Neon 80s colour palette (electric blues, oranges, purples), cinematic lighting, fun nostalgic tone. Clean layout suitable for a quiz flyer, original retro typography.