I'm far far from being good. I have to practice more. I am deceived. What can I do to improved? lava
Sorry Max, I have a strong cold/flu with high fever so I'm not upto looking at your whole Node tree, but what you have wrong, is that you put a Value (grey) into the Displacement, meaning that the displaces in the same x, y and z direction:
You can find that Node under Vector > Displacement.
I was so pissed off that I actually deleted my blend file. Nodes can be boring when you start.
Hope you will recover well and fast.