A mesmerizing scene of the Underground Crystal Cathedral nestled in a mystical cavern. The cathedral features towering spires inspired by Rococo architecture, adorned with intricate floral motifs and serpentine curves, crafted from shimmering crystal facets. Soft, ethereal light refracts off the crystalline structure, casting a kaleidoscope of colors against the rough cave walls. Inside, delicate crystal chandeliers hang from the ceiling, illuminating Rococo-style cherubs and mythical creatures painted on swirling vines and blossoms on the walls. The iridescent gemstone mosaic floor leads to a radiant crystal altar emitting celestial light, while wispy tendrils of mist weave through the air, creating an enchanting, dreamlike ambiance.