Classic old-style navy school swimsuit (one-piece), kneeling on the poolside with her upper body slightly twisted as she looks back over her shoulder, slightly low angle rear view, one hand lightly adjusting the side of her swimsuit in a natural way, healthy and natural body lines, clean sharp lineart, cel-shaded anime style, subtle water droplets on the skin, shallow depth of field with soft background blur and round water-reflection bokeh, outdoor swimming pool, bright summer sky, refreshing lighting