A smiley face is drawn as a yellow circle with black stroke, two fixed-position eyes, and an arc-based mouth, centered on an SVG canvas. The visualization uses React to render the SVG elements, with D3’s `arc` API generating the mouth path based on inner and outer radii and angular extents. All coordinates are calculated relative to the canvas center, and the face is grouped using an SVG `<g>` transform. The code relies on static, hardcoded dimensions and does not include interactive or animated behavior.