This fork of a D3 v3 tutorial draws a static yellow smiley face on an SVG canvas. A large circle forms the head, with two smaller circles for eyes, and an unfinished `d3.arc` path for the mouth, which is defined but not rendered. The code sets explicit pixel coordinates for each shape, using SVG circle elements and the `d3.arc()` API with inner and outer radii plus start and end angles. The example demonstrates basic SVG shape composition and D3 arc generation without any interactive or animated behavior.