A bare minimum HTML page.

See also React Starter.

Modifications:

#1:
-Add SVG elements
-D3 for importing arc (mouth)
-React, react-dom for placing elements (eyes, iris etc.) programatically

• rollup.js (bundler for JSX)
• unpkg as CDN

#2:
-Refactoring code using React components
-Compartmentalizing (adding refactored React components further into compartments) for scalability.