A grid of eighteen smiley faces renders in React, each with randomized eye and mouth dimensions. The visualization shows how reusable SVG components—BackgroundCircle, Eyes, and Mouth—compose with D3’s `arc()` generator to create the mouth path. A FaceContainer wraps the group with a centered translation, while the code uses the `range()` iterator from D3 to generate repeated faces. All geometry is drawn as SVG circles and paths, with yellow fill, black stroke, and variable stroke widths, highlighting component-driven parametric design in a static, non-interactive layout.