Create a stunning 8K cinematic portrait of a child taking a selfie inside a colorful, cartoon-themed amusement park. The child stands next to a giant blue cartoon cat, while a small brown cartoon mouse sits playfully on the cat's head. The child smiles naturally at their smartphone camera, holding a modern phone in their outstretched left hand as the photo is taken. They are wearing a loose-fitting, dark gray graphic tee and high-waisted, light blue jeans. The giant blue cartoon cat stands beside and slightly behind the child, affectionately embracing them around the waist with one arm while the other is wrapped around their waist. The cat features large, expressive green eyes, oversized ears with pink linings, a white muzzle and belly, soft blue fur, a friendly, playful expression, and highly detailed, animated 3D graphics. The cat is a cute little brown cartoon mouse perched on the cat's head, smiling happily and flashing a peace sign with both hands. The mouse has large, round ears, expressive eyes