儿童立体书风格（3D纸雕）

Transform this image into a children's pop-up book illustration. Simulate a 3D paper cutout style with layered elements and folded paper shadows. Use bright, flat colors and clean shapes. Characters should have simplified, childlike proportions and appear as if they are made from cut and glued paper. The scene should look handcrafted and theatrical, like it's built from folded cardstock and set on a blank stage. Convey a joyful, playful mood.