This interactive, SVG-based example renders a smiling cartoon face composed of basic shapes: a yellow circle for the face, two black eyes, and a curved mouth created with an arc. The face is built modularly in React, with separate component files for each facial feature, and is anchored to the center of a 960x490 canvas. The code uses `d3.arc` to generate the mouth’s path, and the `FaceContainer` component logs mouse-move events to the console using `onMouseMove`.