Knowing Pablo he probably used an oil based media right on the screen, the block out would have been water based. After the block out has dried, wash out drawing materials and print. That’s my guess.

We used to use Litho crayons on the screen then flood the screen with that kindergarten glue, usalege(sp?) same principle as Litho crayons are washed out with paint thinner.
Since your playing with lino , Pablo also developed a great and simple approach. 1st print your lino block as a full flat, lets say black, then he would carve his image thinking of the carved lines as positive marks. Next print it using, lets say opaque white over the black flat, with just two colors and you have a black positive image. Pablo had great graphic success with that approach. Its even better if you hit the black while its still wet, lots of nice repulsion there. Try your little animals using this approach, I think Pablo was so successful is to be attributed to his directness and he didn’t care about his mistakes, he took risks and tried to avoid thinking, instead he paid attention. I feel that thinking hamstrings an artist.

Please post those lino cuts, I’d love to see them. I can’t stand any water based inks, because I’m a Litho guy everything I print is with Litho inks, it’s like oil painting with large rollers. Oil based printing inks must be added to trans base, they are just so concentrated, and intense, I never buy anything smaller than 5lb cans of trans base, some of my inks have been with me since I finished college in 87, but you really go thru the trans base.
Some of Picasso’s art looked like a five year old’s work. It’s such a hard thing to put your finger on, we relish the honesty and drive of a child when they create, worts and all, its so pure. Then as adults we try to somehow rise above it, but speaking personally I love seeing mistakes and the humanity it conjures, we all have flaws.