Eighteen procedurally generated smiley faces fill the viewport, each rendered as an SVG circle with black outlines, expressive eyes, and a mouth. The faces vary randomly in stroke width, eye size, and mouth dimensions, creating a playful grid of emotion. Built with React and D3, the visualization composes reusable components—`Face`, `Eyes`, `Mouth`, and `BackgroundCircle`—within a `FaceContainer`. The `Mouth` component uses D3’s `arc()` API to draw the smile as a path, while `range()` from D3 generates the face count in `index.js`.