In the first six boxes I tried to reproduce the texture of six objects – a metal pan scrubber, a sponge, a sawn piece of wood, a tea towel, a shiny plant leaf and a ceramic vase. The main problem was showing the highlights reflected from the metal scrubber and the glossy leaf.
In the last four boxes, I tried some of the techniques with which I am familiar from watercolour painting but using Indian ink, viz. sprinkling coarse salt onto the wet ink (not as successful as with watercolour paint), resist with white wax crayon (didn’t work with Indian ink) followed by dabbing with paper towel and scraffito with a sharp knife (moderate success), applying the ink with sponge and screwed up paper towel (successful) and finally wet on wet and dropping ink into wet areas (interesting effects).
Sometime ago, I used some of these and other similar techniques with watercolours to reproduce the texture of a stone wall.