Illustrazione di poster anime retrò di riva fluviale estiva

Using this character, create a retro × pop key visual. Use the reference image only as a character reference; do not reuse the original image's composition, pose, background, or framing. Flat-leaning anime coloring. A slightly thicker outline. Don't pile on too much information; compose the frame with a conscious sense of negative space. A summer riverbank. She sits on a grass-grown concrete step, a half-eaten ice cream in one hand, gazing absently at the river. Give natural depth with three layers: foreground, middle ground, and background. In the foreground, place restrained elements that add atmosphere and a sense of everyday life; in the middle ground, place the character as the main subject. In the background, briefly include a setting that conveys the mood of the place and a sense of distance, organizing each layer so it isn't overloaded with information. Don't let it become a flat single illustration; compose it so the eye flows naturally into the depth of the frame. Express the retro feel not through obvious symbols or explanatory staging, but naturally through color, atmosphere, composition, sense of distance, and design sensibility. Avoid excessive detailing, dense AI illustration, particle effects, overloaded backgrounds, and glaring lighting. Make a quiet, stylish frame, organized like a poster.