A colossal parasitic metropolis growing on a massive living planet-sized organism, towering organic skyscrapers sprouting from pulsating flesh-like surfaces with glowing circulatory pathways, sky gardens blooming from bioluminescent membrane terraces, flying symbiotic vessels navigating between pulsing veins, deep crimson and phosphorescent purple palette with internal organism glow illuminating the impossible organic architecture, epic wide shot with tiny silhouetted figures on observation decks emphasizes impossible symbiotic city scale, photorealistic, cinematic depth of field