This example displays a grid of fifteen identical cartoon faces, each rendered in yellow with black outlines, two eyes, and a curved mouth. The visualization is built with React and D3.js, where the `d3.arc` API generates the mouth path with specified inner radius and width. The `Face` component composes reusable subcomponents—`BackgroundCircle`, `Eyes`, and `Mouth`—within an SVG container, and `d3.range` creates the array of face instances, all positioned using explicit center coordinates.