This example renders a simple smiley face as scalable vector graphics, composed of a yellow background circle, two black eyes, and a mouth. The face is assembled from modular React components, including `BackgroundCircle`, `Eyes`, and `Mouth`, which are grouped inside an SVG container. The mouth is generated using D3’s `arc` function to create a half-circle path, while the overall layout is positioned via SVG transforms. The visualization demonstrates a clean separation of concerns, with reusable components and D3’s geometry utilities driving the drawing.