This is a sample page for my "Color sample book" of the new Akashiya SAI Watercolor brush pens I got from JetPens. They are all transparent and pretty vivid. As you can see, they don't lift too well after being dry for a couple of days. They lift easier when wet or damp. The Outliner is waterproof. They Yellow was hard to lift at all, the Tea Brown the easiest.
This is my first attempt at painting on Yupo paper. I used Bienfang watercolor brush pens. The boat was M Graham gouache. I was very pleased with the way the colors went on the paper. I could easily move the paint around without having to worry about it drying too fast. I haven't tried this with regular watercolors yet, but the brush pens was a surprise. I liked with they could do.