I was asked about the image I used as a card for the Yuku Blog Ring.
It's some sort of fabric-like thing glued to a cardboard. I can't remember who bought it for me but basically you dipped the paintbrush in some colored water and touch it to the fabric. The paint would spread. Sometimes if you put too much, the color would darken. Some of my 'darkening' attempts for shading caused it to spill over the lines so there's some goofs if you look hard.