The black hole in the movie Interstellar has looked incredibly stunning so far. I have decided to create its procedural reflection in Blender.

You can buy this here:

https://blendermarket.com/products/blackhole

Main render of the black hole with later added planets also procedurally rendered.

Second render of the black hole with later added planets also procedurally rendered.

Procedural PBR texture for the foreground planet + procedural clouds.

Procedural PBR texture for the lecoplan planet.