A young girl in a simple navy blue yukata releases a glowing paper lantern onto a calm river at dusk, the warm orange light reflecting on the dark water surface, bamboo groves silhouetted against a gradient sky of deep purple to soft coral, fireflies beginning to dance among the reeds on the riverbank, distant mountains fading into evening mist, hand-painted watercolor background with deep indigo river tones and warm amber lantern glow, cel animation aesthetic with crisp clean lines, tender hopeful mood, Studio Ghibli inspired artistic style