PROMPT:
Create a breathtakingly realistic image of an underground metropolis, where iridescent blues and emerald greens illuminate the intricate network of tunnels and caverns, as if the very rocks themselves were radiating an otherworldly glow. Incorporate vibrant, electric hues of orange, yellow, and turquoise to bring this subterranean world to life, minimizing the use of pink tones. Depict towering crystalline formations, their facets glinting like diamonds, as they support the weight of the city above. In the heart of the metropolis, a majestic, ancient tree stands tall, its gnarled branches twisted with bioluminescent vines, casting an ethereal light across the bustling streets. Populate the scene with a diverse array of inhabitants, each with their own unique, fantastical features, as they go about their daily lives in this extraordinary, hidden world.
