This example shows a smiling face constructed from a yellow circular face, two eyes, and a mouth. The face is built using React functional components, with the `Eyes` and `Smile` components each returning inline SVG elements. The `App` component positions these parts using SVG `<g>` transforms with translations, rotations, and scaling, and applies styles from CSS classes. The eyes and mouth contain multiple layered shapes with gradients and custom paths, rendered in SVG.