This example renders a grid of 18 procedurally generated cartoon faces using D3 v7 and React. Each face is composed of a yellow background circle, two eyes, and an arc-based mouth, with randomized eye offset, eye radius, mouth width, and mouth radius values. The React components structure the SVG output, while D3’s `arc` generator creates the mouth path. The faces are drawn asynchronously with each render, producing varied expressions across the grid.