a dreamy y2k cinematic portrait of a beautiful 18-year-old Korean idol-style girl, wearing a crown of blue hydrangea flowers like a floral halo, long straight black hair flowing down to her waist, flawless porcelain doll-like skin, delicate and pure facial features, clear expressive eyes looking directly at the camera, soft innocent yet ethereal beauty, wearing a navy long-sleeve school uniform, sitting in a vast field of blooming blue hydrangeas, vibrant petals gently floating in the wind, clear fresh summer sky, refreshing and airy atmosphere, surreal dreamy mood, nostalgic y2k aesthetic, CCD digital camera look, early 2000s vibe, soft glow, light haze, film grain, slight blur, pastel blue tones, cinematic lighting, shallow depth of field, ultra high resolution, highly photogenic, dreamy yet realistic