This example renders a yellow smiley face as a static SVG graphic using React and d3. The composition combines a large yellow circle for the face, two smaller circles for eyes, and an arc path for the mouth, all centered within a 960×500 viewport. The code constructs the mouth with `d3.arc()`, using specified inner and outer radii and angular start/end points. React manages the DOM rendering through `createRoot`, while d3.v7 provides the arc generator and SVG elements are declared directly via JSX.