Voxel-art pagoda garden single-file HTML scene

Design a richly crafted voxel-art environment featuring an ornate {argument name="main_structure_en" default="pagoda"} set within a vibrant garden.
Include diverse vegetation—especially {argument name="key_tree_en" default="cherry blossom trees"}—and make sure the composition feels lively, colorful, and visually striking.
Use any voxel or WebGL libraries you prefer, but deliver the entire project as a single, self-contained HTML file that I can paste and open directly in Chrome.