Photoreal Rainbow Inside a Modern Apartment

Photorealistic scene of a vibrant rainbow arcing across a sunlit modern apartment. A large window opens to a bright day; warm sunlight streams in, casting multicolored reflections on a polished wooden floor. Inside, a cozy living room with a gray fabric sofa, soft cushions, a glass coffee table with a mug, a tall green plant, and a sleek bookshelf. The rainbow's colors softly illuminate walls, the sofa, and glass surfaces, with lens flare and subtle shadows for photographic realism. Rich textures: wood grain, fabric weaves, and glass reflections; city skyline visible, softly blurred through the window. High dynamic range, cinematic lighting, 8k realism.