A gallery of randomly generated cartoon faces rendered as React components in SVG. Each face combines a colored background circle, two offset eyes, and an arc-based mouth, with dimensions and colors generated using `Math.random()` and `d3.rgb`. The `d3.arc` API creates the mouth path, while React's component structure composes `FaceContainer`, `BackgroundCircle`, `Eyes`, and `Mouth` into a scalable SVG scene. A `range` from d3 instantiates multiple faces simultaneously.