Thanks!

DCEL isn't the renderer, it's the memory layout for the geometry while it's being manipulated. It has lots of redundant data for easy traversal. (See wiki link in original post for details.) After you #ProcGen the shape you want, you convert it to standard vertex buffers for rendering.

Wow! That's some pretty high praise. Thank you very much!

Thanks. I was leaning towards stylized art when I started, but there isn't (or wasn't) nearly as much enemy variety on the market. There was plenty of environment art on the market, but not many enemies to go with them. I opted for realistic(-ish) because the market had the variety I needed.