This example shows a smiley face constructed from modular React components. A yellow circle forms the background, with two smaller circles for the eyes and a D3-generated arc for the mouth, all positioned within an SVG canvas using an SVG group and translate transform. The code uses React for component composition, D3 v5’s `arc()` API to create the mouth path, and D3’s random-looking data to format arcs. It appears as a single frame from a series exploring incremental assembly of the face.