Cutout 2 by robin holder  Image: One of the few color viscosity collagraphs I've created. This is a very special technique that results in a range of  colors by changing the oiliness of the inks, softness of the rollers and applied inking pressure.
One of the few color viscosity collagraphs I've created. This is a very special technique that results in a range of colors by changing the oiliness of the inks, softness of the rollers and applied inking pressure.