Elven castle, island city, central ...

Elven castle, island city, central giant tree, white stone towers, emerald roofs, prismarine roofs, oxidized copper roofs, arches, bridges, staircases, balconies, terraces, courtyards, docks, boathouses, waterfalls, aqueducts, rivers, cliffs, retaining walls, hanging gardens, vines, shrubs, moss, forests, tree canopies, glowing purple crystals, crystal lanterns, spires, support pillars, pathways, tunnels, cliffside structures, harbor, shoreline, riverbanks, layered districts, elevated walkways, palace sections, ruined sections, towers connected to tree, canals, stone platforms, small houses, watchtowers, gates, walls, windows, archways, fountains, rock formations, hills, plains, custom terrain, vegetation clusters, sacred tree roots, rooftop gardens, waterfalls flowing into river, stone do