Compact open floating Minecraft hub...

Compact open floating Minecraft hub, one connected symmetrical cross-shaped celestial station. Build a low horizontal platform, about 61x61 blocks: central 21x21 open atrium with recessed blue-violet magic core and thin gold radial floor patterns, plus four short broad wings in cardinal directions. The exact visual language: elegant bright smooth quartz, calcite, white concrete and polished diorite shell; gold accents; dark deepslate-tile and polished-blackstone hanging support pylons under the wings; tapered dark floating underside. Each wing ends in an airy, shallow pavilion with no walls. Add cyan lanterns, amethyst, soul-lantern glow and a few tinted-glass details. The hub must look like it is hovering high above the clouds in the End. Make it detailed, balanced, and survival-buildable. Do not make a circle, spaceship, ring, huge tower, medieval roof, trees, or separate islands.