This example shows a simple yellow smiley face drawn as a static SVG graphic, with a black-outlined circular head and two black eyes positioned symmetrically around the center. The visualization is built using React components that define reusable SVG elements, such as `MainCircle` and `Eyes`. The code relies on React 17 for rendering and the project uses D3 v6, though no D3-specific drawing APIs are invoked. All geometry is hardcoded with fixed dimensions, producing a minimalist face without a mouth or further facial features.