This example renders a grid of 32 randomly generated faces using React and D3. Each face is composed of reusable SVG components for the background circle, eyes, and mouth, with randomized eye positions, eye radii, and mouth widths. The mouth is drawn with a D3 arc generator, while the face container centers the SVG group using a transform. The demo shows how D3’s `arc` and `range` can be combined with React’s component model to create varied, data-driven SVG graphics.