A whimsical underwater scene: A Pixar-style 3D animation of a smiling whale, 'Wally', with a rounded head, big shiny eyes, and a tiny fin on his forehead. Wally swims playfully amidst a school of sparkly fish, surrounded by coral reefs and oceanic plants. Soft blue-green lighting highlights the texture of Wally's translucent skin, while golden sunlight filters down from above, casting a warm glow on the underwater landscape.