Cosmic Nebula Over Ancient City

A vast, swirling cosmic nebula dominates the upper half of the image, with a bright, luminous core pulling inwards like a celestial whirlpool. Streaks of brilliant blue and golden light intermingle with dark, dense clouds, and scattered stardust twinkles like diamond dust. Below, a sprawling ancient city glows with countless warm lights, nestled beside a dark, reflective body of water. Majestic, classical architecture with grand colonnades and domed structures are visible on the city's edge and within its landscape. The background features rolling, silhouetted mountains fading into a deep twilight sky. The scene is bathed in dramatic, ethereal lighting that accentuates the otherworldly nature of the sky and the grandeur of the cityscape. The overall mood is one of awe, mystery, and cosmic wonder