Yay! I’m so glad you’ve been inspired to try black glue resist art! It’s really easy to make, the problem I see more often than not is that people think they need to make the glue look black and end up using too much acrylic paint, and this can add black to your watercolor painting if you use a lot of water. A little black acrylic paint in a white glue bottle, well shaken, goes a long way! Enjoy!