Kraken Storm Effect (Material 4)

Source of Inspiration image: https://www.pinterest.com/pin/504825439482915288/

Diagram of How I wanted the effect to look like. (I tried to replicate the lightning effect which would light up the swirl and clouds, but was unsure how to do so, so I unfortunately scrapped it.)

Showcase of what Mesh looks like without materials.

Upper Cloud rotation node.

Wind effect Node that rises into the sky.

Material node for the Tentacles (wanted to add a watery look to the tentacles.)