Build the Astroverse main spawn isl...

Build the Astroverse main spawn island as a large floating cosmic-fantasy hub island. Shape it as a broad irregular octagon with steep cliffs, elegant silhouette, and a massive downward stone spire beneath it. Add several smaller floating satellite islands around it for future structures, but do not build structures yet. Style should match Astroverse: quartz, polished deepslate, dark prismarine, teal glass, amethyst accents, and cool celestial atmosphere. Focus only on terrain massing, floating forms, and readable hub layout.