Build a playable ruined twin-emblem...

Build a playable ruined twin-emblem reunion sanctuary for Minecraft Java 1.21.1, strictly contained within 82 blocks wide, 66 blocks deep and 40 blocks tall. Generate only the sanctuary module without distant mountains, sky scenery or a complete biome. Create two separate 4-block-wide final-approach routes. The west route emerges from behind an irregular western waterfall on a dark raised terrace. The east route emerges from behind a different eastern waterfall on a pale crystal-and-water terrace. Keep both routes physically separated by water channels, broken retaining walls and height differences, but let the players become mutually visible approximately 18 to 22 blocks before reaching the central plaza. No mandatory jumps or accidental fall holes. Use deepslate, tuff, blackstone, poli