Hello,

 

I made a very large swatch on an A4 sheet. I photographed it at high resolution at 24MP. I didn't need to make a repeat pattern from this, I used it as a background instead. My editing skills are not much really. I cut out the text from the background and pasted it on a new layer.

Colour enhanced :

Texture filled into text

 

texture filled into a pattern

 

Thank you