PROMPT:
Generate a photorealistic image of a mystical underworld realm, teeming with life and ancient magic, set amidst a labyrinthine network of iridescent caverns and twinkling crystalline formations. Incorporate vibrant hues of emerald green, sapphire blue, amber, and gold, but minimize the use of pink. The atmosphere should pulsate with an otherworldly energy, as if the very rocks and crystals are imbued with a mesmerizing glow. Depict a sprawling, ornate architecture that appears to have grown organically from the cavern walls, with delicate, lace-like filigree and sweeping archways that seem to defy gravity. In the foreground, feature an array of fantastical creatures, such as luminescent winged horses, iridescent serpents, and humanoid figures with skin that shimmers like opals, all gathered around a glowing, ethereal portal that seems to be the source of the realm's mystical power.
