Interactive Billboard Selfie Prompt (Jim Carrey Style)

A complex, structured JSON prompt template for Nano Banana Pro designed to generate an image where the user (based on an uploaded photo) interacts playfully with a giant billboard featuring a celebrity. The prompt specifies the spatial logic, subject pose (pointing, laughing), background details (realistic vinyl texture), and negative constraints to ensure a high-quality, lifestyle-oriented street snap. Via YouMind OpenLab prompt library (MIT).