发光小孩一笔刷出彩虹

A slender light-brush arcs through the sky in the hands of a small glowing child, standing centered on a worn park bench, joyful and intent as the stroke becomes a luminous rainbow. Dusk is sliding into night: the horizon glows warm pink and orange, echoing #FF5EA2 and #FFB400, while the rainbow itself pulses through #FFD400, #4BD3FF, and #6A4CFF. Keep every surface clean and unlettered — bench wood and distant rooftops show only plain grain and soft urban texture. The air reads cool and clear, a faint haze gently softening the far shapes. Sharpest focus sits on the child and the near bench, with moderate depth fading into a softly receding skyline. Eye-level viewpoint, vertical 9:16 portrait framing, the child held slightly above center so there's headroom for the arc. Light stays gentle and glowing, a soft halo separating the child's silhouette and the painted arc from the background. A small paint can and a folded jacket left on the bench serve as quiet story details. Render in painterly digital illustration with visible brush strokes and luminous edge tones that carry the sense of motion and wonder.