cave inside a mossy red granite canyon:15 brilliant gemstone::10 geode, diamond, emerald, ruby, precious stones, Gem, Mineral & Fossil::5 cinematic, high detail, 4K, detailed by Jean-Honoré Fragonard, river waterfall, mushrooms and fireflies, by marc simonetti, natural volumetric lighting, realistic 4k octane beautifully detailed render, 4k post-processing --ar 2:1