Build a massive fantasy nature cast...

Build a massive fantasy nature castle in Minecraft, fully integrated into the environment. The castle should be carved into a giant mountain and surrounded by lush forests, waterfalls, rivers, cliffs, and giant ancient trees. Use a natural color palette with stone bricks, mossy stone bricks, cobblestone, moss, oak, spruce, dark oak, jungle wood, leaves, vines, and flowers. Include: - Huge medieval main castle with multiple towers and tall spires - Large entrance gate with a stone bridge - Beautiful throne room - Grand library - Royal dining hall - Bedrooms and living quarters - Secret underground tunnels - Hidden treasure room - Blacksmith - Stable - Watchtowers - Courtyard filled with gardens and fountains - Farms, windmills, and small village houses nearby - Training grounds and PvP are