A detailed portrait of a teenage girl with East Asian features, standing outdoors leaning slightly against a large tree trunk. She is wearing a traditional Japanese schoolgirl sailor uniform consisting of a white short-sleeve blouse with a red necktie, and a pleated navy blue skirt. Her posture is relaxed and natural, with one arm resting at her side and the other slightly supporting her weight against the tree. She gazes softly at the camera with a subtle, warm smile and bright, expressive eyes. Her long black hair is tied into a ponytail with loose strands gently framing her face. The setting is a lush green park with sunlight filtering through the leaves, casting dappled light and soft shadows across her face and outfit. In the background, there are benches, pathways, and trees, suggesting a calm and peaceful park environment. The scene is captured from a straight-on angle, emphasizing the subject's natural beauty and innocence, with a vibrant color palette of greens, whites, and deep navy blues.