A face built from SVG primitives is drawn on a 960 by 500 canvas, with yellow circle head, black-outlined eyes, eyebrows, and a smile-shaped arc. The animation sequentially shifts the entire eyebrow group downward and then back upward over two seconds each using chained D3 transitions. The example demonstrates basic DOM manipulation via `d3.select` and `append`, constructing shapes with attributes, and moving elements with `transition().duration().attr()`, where the mouth is generated with the `d3.arc` generator.