Help with repeating material

Hey guys,
I have a question:
My goal is to achieve a material that looks like the floor in this picture: http://www.baustoff-partner.de/files/2015/03/Disbon_LIK_2149.jpg

Ive made some good looking effects as you can see here, but the textures tile too often. →

This is my material setup:

As you see I have already tried to fix this. I included a macro texture, that tiles less etc. Any suggestions what I could do from here?