This example demonstrates foundational SVG shape drawing in a React application, using a static HTML page with inline SVG elements. It shows a black square with overlapping circles that form a simple face, including yellow eyes with black pupils and a gray nose. The code directly uses SVG primitives like `<rect>` and `<circle>` with explicit `cx`, `cy`, `r`, and `fill` attributes, rendered inside an `<svg>` container at 600 by 600 pixels. No external libraries or data sources are involved; the visualization relies purely on manual coordinate and styling definitions.