Adding background colour
- After painting something, offload any extra paint onto blank sketchbook pages...
- ...embellish further with bubblewrap, cling film, tissue papers or indeed printing that paper onto another sheet.
- Look into spray inks and use them with stencils
- Paint papers using a brayer. Squeeze paint onto a surface in squiggles place paper on top and roll over with a brayer. Lift off and let it dry. Repeat with more paper.