The bright gold squares and lines and some of the god dots were with a ruling pen.  But, I switched to black and white ink pens for the mark making.  And I had a wee bit of a disaster with my pebeo cerne relief in rich gold.  The nozzle was working fine, until it wasn't and I squeezed too tight and the paint exploded out the back...onto my face, hair, shirt, the ground behind me.  I got it cleaned up and decided enough art for the day!