Blender shader : Damascus Steel

Beginner here :
Hi everyone ! I have recently been watching a lot of "Forged in Fire" and wanted to try to reproduce the Damascus Steel that we often see used for weapons.
I am a newbie in Blender (And 3d in general) but got interested in shaders recently. I hope you like this shader and will probably post more ! :)

This shader has been reproduced with the help of a tutorial.