A simple animated face is drawn with SVG inside a React component. D3 v5 selections create a yellow circle for the head, black circles for eyes and eyebrows, and an arc path for the smile. Transitions animate the eyebrows upward and the smile downward over two seconds each, then return them to their original positions. The example demonstrates layering groups with `svg.append('g')`, applying translation transforms, and using `transition().duration()` for sequential movement.