This example builds a cartoon face from basic SVG shapes using D3 v7. It shows a yellow circle head with eyes, eyebrows, and a mouth, all positioned relative to the center of a 960×500 SVG canvas. The code uses D3 selections and method chaining to append and configure elements, including the `d3.arc` path generator for the smile. All styling and layout are handled through SVG attributes, with the face centered via a translation transform.