Create a 3D model of a colossal bear guardian, infused with nature's raw power. Its body is covered in thick bark-like armor, layered like natural plating, with patches of glowing moss and embedded crystals sprouting from its shoulders and back. Its fur is coarse and earthy, blending seamlessly with forest textures. Its eyes glow softly with a protective, ancient energy. The bear should look both serene and terrifying a slow-moving protector of the forest that becomes unstoppable when provoked.