This example builds a stylized face using React and D3 v7, rendered as SVG. It shows a static composition of a yellow circle for the head, two black circles for eyes, and arcs for a mouth and moustache, all positioned with SVG transforms. The code uses `d3.arc()` to define the mouth and moustache paths with specific inner/outer radii and angle ranges. React 17 renders the SVG elements, while D3 provides the arc generator, with all dimensions and offsets hard-coded.