This example displays a 6x3 grid of cartoon faces, each with a yellow circular background, black stroke, two eyes, and an arched mouth. The faces are rendered as React components using SVG elements, with each face’s eye radius, mouth width, and mouth radius randomized on every render. The code leverages React’s functional components, `d3.range` for array generation, and the `d3.arc` API to draw the mouth path, all composed within a custom `FaceContainer` that wraps the SVG output.