This example uses d3 v5 to construct a simple, stylized face entirely from SVG primitives. It draws a yellow circle for the head, two smaller circles for eyes with circular pupils, rectangular eyebrows, and a semi-circular mouth created with an arc path. The face is centered within an SVG canvas using a transform, with facial feature positions calculated relative to the center. The code relies on d3's `select` and `arc` functions, and demonstrates how to programmatically generate SVG shapes and coordinate them for a recognizable composition.