In the city rainbow illustration, a vibrant arc of colors gracefully spans the urban skyline, transforming an ordinary day into a spectacular tapestry of hues. The rainbow's luminous bands—red, orange, yellow, green, blue, indigo, and violet—arch over towering skyscrapers and bustling streets, casting a magical glow over the entire scene. Sunlight pierces through dissipating rain clouds, creating a dazzling contrast between the stormy grayness and the brilliant spectrum above. Reflections of the rainbow dance on glass windows and puddles below, adding layers of color to the city's dynamic pulse. People pause in their daily routines to gaze upward, momentarily united in wonder at this fleeting yet beautiful phenomenon. The illustration captures a perfect moment where nature’s artistry meets the modern marvels of human achievement.