This example renders a yellow smiley face composed of modular React components, each defined in a separate ES6 module. The face is drawn using SVG primitives, with a black-bordered circle background, two eyes, and a mouth created as a d3 arc path. The React code organizes the scene through a `FaceContainer` that positions a central group, while the `Mouth` component leverages the `d3.arc` API to generate a curved path. The visualization demonstrates component reuse and fragment usage to structure SVG output.