She was going to demonstrate three different ways of painting in the negative, but unfortunately I could only stay for the first one.

We wet the paper thoroughly, leaving the inside of the pencil lines untouched.
Next we brushed in various into pure colours of blues, reds, and yellows into the wet background allowing them to mix together on their own as we moved the paper to help the paint flow through the water.
Lastly, we sprinkled salt into the background before setting it aside to dry.
Once the background was dry I brushed off any access salt remaining on the paper and started to paint in the garlic.
I will post this painting at a later date once it is completed.