Cartoon Theme Park Selfie Portrait Prompt

Create a stunning 8K cinematic portrait, vertical 4:5, of a child taking a selfie inside a colourful cartoon-themed amusement park. The child stands beside a giant blue cartoon cat with large expressive green eyes, oversized ears with pink linings and soft blue fur, which embraces the child affectionately around the waist, while a small brown cartoon mouse sits playfully on the cat's head flashing a peace sign. The child smiles naturally at a smartphone held in an outstretched hand, wearing a loose dark grey graphic tee and high-waisted light blue jeans. Keep the cartoon characters in detailed animated 3D style, the child's expression genuine, and the park background bright, colourful and festive.