celestial citadel 3d model

Massive floating celestial citadel in deep space, fantasy art style but photorealistic rendering, ultra realistic materials and lighting. 1.2 kilometer orbital palace. Central structure is a towering crystalline spire wrapped in spiraling golden filigree and ornate metalwork, glowing from within with warm ethereal light. The spire rises from a broad circular platform of polished dark stone and luminous arcane metals, with sweeping curved archways and buttresses extending outward like the petals of an enormous cosmic flower. Four graceful arms radiate from the central platform, each tapering to a point and decorated with intricate carved reliefs, glowing rune channels, and floating lantern-like energy orbs suspended in midair along their length. Between the arms, translucent energy membranes shimmer like aurora borealis curtains, shifting between teal, violet, and gold. The underside of the platform features a massive inverted dome of swirling luminous energy, pulsing gently like a heartbeat, suggesting an imm