Thank You all for Your valuable input
Molly is right I didn't add a shadow because I wanted it to look like it is a weave.
I thought about adding stitches but it looked more natural the way it is.
Dalia,yes I spent a lot of time on it,because I wanted to see what different settings actually do instead of just following a tutorial.
The main mystery for me,was when to apply multiply instead of burn or screen or whatever..
It was fun to learn and see what does what.
Please don't ask me how I got to that result
I can't remember,because I made the mistake of not saving an xcf file.