A grid of eighteen smiley faces, each rendered as an SVG circle with a yellow fill, black stroke, eyes, a mouth, and a nose. The faces vary in eye and nose size due to randomized radius values generated with `Math.random()`. The example uses React components to compose the face parts, D3’s `arc` for the mouth path, and renders all SVG elements through a shared `FaceContainer`. The faces are mapped from a `range(6 * 3)` array.