A smiling yellow face with black outlined eyes and rectangular eyebrows is drawn using D3.js v5 in an SVG. The animation shows the eyebrows moving up and down by chaining two `transition.attr` calls on a group element. The code uses `d3.select`, `d3.arc` for the mouth, and SVG primitives like `circle` and `rect`. Rendering is SVG-based with timed transitions.