This example draws a yellow cartoon face with two eyes and an open mouth using D3 v7. The code selects the SVG element, applies a centered group transform, and builds the face with circle and path shapes. It uses `d3.select` to choose elements, the `d3.arc` generator to compute the mouth’s curved path, and inline `attr` calls to set positions and radii based on the SVG’s width and height. The face is rendered entirely in SVG.