Celtic knots

Gouache, approx. 22x22cm.
Single-line knot.

I used some golden pen to make the outlines, but it can't really be seen on that scan.
A photo where the gold is a little visible: [link]

It took way longer than I'd like to admit.
I wanted a green background, and used orange/brow and yellow fort the lines (yay, Autumn colours), but now I wonder if blue and yellow wouldn't have fit better.
I'm still not used to paint, and have trouble doing the most basic things, like mixing colours to get the one I want...

Bon, en tout cas ça se voit que j'étais en panne d'inspi pour le titre...