Young Woman with Large Smartphone Mockup

Generate a hyper-realistic image of a young woman standing next to a large smartphone with a blank green screen, set against a vibrant yellow background. The woman has curly brown hair and is dressed in a light blue denim shirt, high-waisted blue jeans, and white sneakers. She is posing with her left leg bent at the knee and resting on the phone, her right hand touching her face near her mouth, and a bright smile on her face. The smartphone is positioned vertically, with its top slightly above the woman's head, and has a black border around the green screen. The background is a solid yellow color with a subtle shadow cast by the phone and the woman. The overall atmosphere is playful and modern, with a focus on showcasing the smartphone's screen. The image should have realistic lighting, natural shadows, and detailed textures. The style should be reminiscent of a high-end design editorial or campaign photograph.