A face rendered in SVG is centered and composed of layered shapes: a yellow circle for the head, black circles for eyes, rectangular eyebrows, and a black arc for the mouth. Built with D3.js v5, the code uses `d3.select` to target the SVG and `d3.arc` to generate the mouth’s path. The eyebrows animate vertically via chained `transition().duration(2000)` calls, moving down and back up, demonstrating simple tweening of attributes on SVG groups.