Medium floating island with ruined ...

Medium floating island with ruined dark castle architecture. Crumbling blackstone and mossy stone brick towers of varying heights. Broken walls, gothic arched windows, and dark oak wooden platforms. Sparse dark oak trees with dark leaves. Lanterns and torches provide warm orange lighting. Purple amethyst crystals jut out from the island edges. A flat central platform with a decorative portal frame. Jagged broken edges on the island underside.