Ultra-realistic 8K DSLR photo of a beautiful Indian girl sitting cross-legged on a red and white checkered picnic blanket in a sunny green park. She is wearing a vibrant red dress and holding shiny pink heart-shaped balloons with a bright, joyful smile while looking directly at the camera. Her face should be clearly visible, expressive, and naturally lit. Beside her sits a white birthday cake with red frosting details and a spread of fruits, snacks, and drinks. A "HAPPY BIRTHDAY" banner hangs between trees in the background under clear blue skies. Capture natural sunlight, bright colors, and soft shadows. Replace only the face with the provided reference girl's face, ensuring 100% realistic detail, perfect lighting match, and accurate skin tone. The result should look like a candid outdoor birthday photo captured on a perfect sunny day, with the girl joyfully facing the camera.