A variation on clingfilm: Tissue paper
Paper: Bockingford 300gsm NOT
Lay the lightly crumpled tissue paper on top of the paper and paint with very wet paint.
Colours: Perylene Maroon, Winsor Violet (lines)
Once dry, remove the tissue and tease out the image.
Enhancements done with translucent orange, burnt sienna and burnt umber.