masterpiece, best quality, score_7, safe, 1girl, solo, An original adult female beach sports guide stands on a wooden boardwalk at a seaside summer festival at night, fireworks bursting over the ocean behind her. She has bright chestnut hair tied into a high ponytail decorated with a small turquoise hair clip, wide sparkling hazel eyes reflecting the firework colors, and a sun-kissed healthy glow. She wears a light turquoise yukata patterned with small white hibiscus flowers, tied with a bright coral-red obi sash, and simple wooden geta sandals. Both eyes are open and bright, her mouth is open in a wide joyful laugh, and one hand is raised with a small paper fan while the other lightly holds the edge of her obi sash. Behind her, a large golden firework blooms high in the night sky, its reflection shimmering on the dark ocean water, string lights and paper lanterns line the boardwalk, and a few festival stalls glow warmly in the distance. Compose the image as a medium close-up at a slightly low eye-level angle, showing her from the waist up. Keep her joyful expression and the yukata's coral obi visually dominant. Keep the large firework burst clearly recognizable in the upper background. Keep the lantern glow as a warm secondary light source. Vivid turquoise and coral-red palette against deep night blue, warm lantern glow contrasted with cool firework light, glittering reflections on water, refined anime rendering, cheerful festive mood. ななせ