Act as a visionary fantasy artist with 10 years of experience in creating ethereal landscapes. Generate a breathtaking image of [Avalora], the legendary floating city hidden among the clouds. The scene should feature [crystalline spires glowing with bioluminescent energy] connected by [delicate bridges made of enchanted silver], all suspended above [a sea of swirling mist that reveals glimpses of ancient ruins below]. Use a color palette of [iridescent blues, soft golds, and pearlescent whites] to create a dreamlike atmosphere. Include intricate details like [winged guardians patrolling the skies] and [floating gardens with exotic celestial flora]. The composition should evoke wonder and mystery, with dramatic lighting that suggests either [the first light of dawn] or [the eerie glow of a double moonrise].