Build an 85x85 Minecraft Halloween ...

Build an 85x85 Minecraft Halloween prison mine. Center an EXACTLY 25x25 clear mine opening, empty for a plugin, with borders outside it. Surround it with a continuous 6-block-wide flat full-block walkway and level south entrance; keep the mine open to the sky. Theme: haunted occult observatory. Build a mansion facade with a shattered dome, crooked towers and an eye-shaped purple window. Add telescope towers, a crescent moon sculpture, jagged crystals and stone tendrils beyond the path. Palette: polished blackstone, deepslate tiles, cracked deepslate bricks, dark oak, purple terracotta, tinted glass, amethyst blocks, crying obsidian and soul lanterns. Use sparse purple and cyan light. Confine scenery behind walls or fences with sealed facade entrances; keep the walkway clear.