This example displays a grid of eighteen smiley faces, each generated as a separate React component with randomized eye sizes. The visualization splits the face into modular components—background circle, eyes, mouth, and a container—using ES6 modules and React Fragments. It relies on D3 v5 for generating the mouth’s arc path via `d3.arc` and for the `range` function that creates the array of faces. All elements are rendered as SVG within a fixed-width canvas, with the smiley faces centered via SVG transforms.