The 13 Holbein drawing inks are waterproof and come with droppers in the screw-on tops. Some are transparent, some opaque.
Sennelier shellac-based inks have a transparent, satin finish and thin with water, if you can believe that!
For the first example shown below, I worked on acrylic paper from a pad, spraying a little purple fluid acrylic from a spray bottle. Then I used the applicator tip of the Carmine color of Holbein ink. It's a powerful pigment! Then I let that dry.
|I actually liked this first step better than the result later.|
|I do like the colors together, though!|
|This will make good collage paper.|