PROMPT:
Create a breathtakingly realistic image of an abandoned underground tunnel, set amidst a labyrinth of eerie, ancient structures, illuminated by an otherworldly glow emanating from iridescent, electric blue crystals embedded within the walls. Incorporate vibrant, mesmerizing hues, such as emerald green, amber, and sapphire, to create an immersive, dreamlike atmosphere. Avoid using pink tones, instead embracing a rich, earthy palette that evokes a sense of mystery and forgotten history. The air should be thick with an eerie, mystical energy, as if the tunnel holds secrets and stories waiting to be unearthed.