A smiling face is drawn entirely with SVG shapes: a gold circular head, two black eyes, and a mouth created as an arc path. The code uses D3 v7’s `select` to append elements to an SVG canvas, and the `arc` generator to compute the mouth’s path with specified inner and outer radii and start/end angles. All shapes are centered via a translated group, with fixed pixel dimensions for the 960 by 500 canvas.