A yellow circle with two smaller black circles for eyes forms a simple face, rendered as an SVG network graph. The example uses React to construct the SVG elements, with D3 loaded via a CDN link. It demonstrates basic SVG shape creation—a large circle for the face and two offset circles for eyes—within a full-screen, marginless layout. The code highlights how to integrate React with D3 for declarative vector graphics, using inline coordinates and style properties to position and style each node.