Smiley Face
A grid of 18 smiley faces renders in SVG via React, each with randomized eye positions, eye radii, and mouth dimensions. The faces are composed from modular components: a yellow background circle with a black stroke, two eyes, and a mouth drawn using the D3 `arc()` path generator. React's `range()` utility from D3 generates the face array, while each face receives identical width and height props but varying randomized parameters for its features. The visualization demonstrates composable, data-driven SVG generation through reusable React components and D3 shape helpers.