Thanks @nathanletwory I give a try to GhShaderNodes, still somethings to understand but I manage the level one, the color and mixing of colors. It is more easy than using standard way in Grasshopper and faster. So very good job Nathan. Noise miss a time value but distortion and detail are great, that could be a valuable add to Grasshopper noise component @piac.
Level 2 I have to add bump map to make a sort of paper.