Roots ~ negative painting

I'm still playing. Last night I poured some wet watercolor onto a swatch of paper, then placed a piece of plastic wrap on it and let it dry. It's a trick most watercolorists know. Afterward, the textures that were created looked like a tangle of roots so I took the cue and ran with it. I carved the tree trunk out and created more, finer roots by using a technique called negative painting. If you aren't aware of this technique, it means painting the areas around an object rather than the actual object (positive painting). Linda Kemp's work  (link) is a perfect example of negative painting. And here are my results.