This example renders a grid of fifteen smiley faces, each built from reusable React components for the background circle, eyes, and mouth. The faces share a fixed layout, but the eye radius is randomized per face, creating subtle variation across the collection. The visualization uses React for component composition and D3’s `arc` generator to draw the curved mouth path. All shapes are rendered as SVG elements within a container that translates the origin to the face’s center, demonstrating a modular approach to assembling data-driven graphics.