卡通手绘风快乐儿童与司机乘坐绿色校车场景插画

cartoon illustration, green and white color scheme, bright and fresh, four people, two adults and two children, all smiling and waving, wearing casual colorful clothes, inside a bus-shaped decorative board, heads and hands sticking out of windows, simple and cute bus design with round wheels and rectangular windows, white background, cheerful and warm family atmosphere, conveying happiness, unity, and eco-friendly travel