A massive whale swims slowly in the deep blue ocean with its mouth wide open, revealing an entire city inside. The city appears to float, with winding streets illuminated by warm, glowing lights. Tall skyscrapers rise up, some extending near the whale's upper jaw. Flying vehicles and small spaceships are moving inside the whale's mouth, as if it is a self- contained world. The whale's tongue forms a vast plain, covered with greenery and parks where people are walking around. Through the whale's open mouth, you can glimpse the dark ocean outside, with occasional beams of light penetrating the deep sea, creating a surreal and mystical atmosphere