Create a monumental, crescent-shape...

Create a monumental, crescent-shaped, exterior-only structure of an arcane airship port, designed in a breathtaking Fantasy Solarpunk and Magitech aesthetic, built into the edge of the gargantuan circular perimeter trench surrounding the World Tree Aeternum. The main crescent platform is constructed from dark, reinforced Deepslate Bricks and complex lattice frameworks of polished and oxidized Copper blocks. The towering docking bays, defined by immense, crystalline and brass crane arms, are powered by integrated Amethyst Clusters that crackle with soft purple sparks. Below the main deck, the multi-tiered "Trading Arcology" is expressed externally as an intricately patterned facade of honeycomb-shaped glass units and Glazed Terracotta circuit patterns that glow with soft blue Lapis Lazuli l