A girl with long black wavy hair wearing a retro swimsuit sits by the pool

A girl with long black curly hair squats by the pool, gently touching her cheek with her fingers in a cute posture. She wears a retro one-piece swimsuit in red, blue, and white patchwork, with a letter print on the chest, beige pointed low-heeled shoes, and water droplet-shaped earrings with a delicate bracelet. The blue-green pool water surface contrasts with the platform by the pool. The blend of Showa retro style and contemporary Japanese illustration features flat color gradients, with rippling water patterns evoking ukiyo-e decorative effects. Her big eyes, subtle blush, and glossy lips reflect a kawaii aesthetic with a more realistic body proportion. The high saturation of the summer pool blue and the red and white of the swimsuit create a striking contrast, with sunlight casting clear shadows. This bright and humid summer afternoon exudes a lazy youthfulness reminiscent of a retro photo album's summer special.