I built a procedural wood texture in Poser after a Blender tutorial. But the final result looks very different from the original. Am I making a mistake or is the mapping node not working correctly? Does anyone have experience with this and can help me?

With kind regards
Stephan Bayer

Here is the tutorial: Procedural Wood Material (Blender Tutorial)

Here is my rebuilt shader. I had to improvise a bit with the colorramps:

The original material:
My material:

The render: