A D3.js v5 example draws a cartoon face from SVG shapes, including a yellow circle head, eyes, and rectangular eyelids. The face animates by using `transition.attr` to move the eyelids downward and back, while the mouth path’s arc changes between two angles via an `arc()` generator. Data values for eye spacing and size are stored in an array, and the scene is centered using SVG transforms. The animation loops sequentially with `duration` settings on chained transitions.