Speedball Acrylic Ink is not waterproof. The packaging says that it is, however, I could easily pick up the ink with my watercolor brush after the ink had dried and I was adding color. Still, I think I managed to salvage this painting of dune grass and I am satisfied with how it turned out. I also used my speedball crow quill for this piece. My favorite part is the texture of the tree.
I also battled with the watercolor paper here, as it buckled slightly. The solution, of course, is to get a thicker watercolor paper, but I have to use up what I have for now.
Also, a little housekeeping has been done on the portfolio section of this website, so it should work more smoothly now!