This example uses D3.js v7 to draw a simple cartoon dog from geometric shapes defined in an external JSON file. The visualization shows a brown dog with a circular body and head, floppy elliptical ears, white eyes, a black nose, and a curved mouth line, all positioned within a 400x400 SVG canvas. The code loads the shape coordinates and colors from the JSON data using `d3.json`, then appends SVG elements—including `circle`, `ellipse`, and `path`—to render each part of the dog. The mouth is drawn as a path with a stroke, while the remaining features use filled shapes, demonstrating a straightforward declarative approach to building vector graphics with data-driven attributes.