@spikeyxxx and @dostovel
Thank you for the pointers and feedback.
I took another swipe at this and reduced some of the early noise applied to increase the solid surface. Fixing the invert and multiply was great and a tweak of the displacement gave me what I was aiming for.
As with every project I could infinitely tweak this but time to hang it up for now and move on with my learning. (I am going to resubmit this image!)
Fascinating exercise, and really brings some tangibility to the nodes as they are applied.
Thanks again.
