Describing phenomena is not just about copying what I see but about the interface of my mind with the subject matter. What elements do I want to capture rather than what received ideas about trees do I want to impose on my drawing.
Here are a couple of sketches of the same trees on the canal bank, first drawn in pen and crayon, and a second time just dragging crayon across dampened paper.
Here I am looking up the slope to trees growing on what was once an iron age settlement, drawn in clear water and the damp image developed by dragging crayon over it.
Again looking at trees growing on the ancient settlement, I drew in water then crayon, sometimes laying down pigment, sometimes scraping back the soaked surface to reveal white again.
Then I started throwing Inktense semi-opaque watercolour onto it, with rather unclear purpose, also scraping back with a knife.
Then much later, I drew back into the dry surface in conte crayon, off site and no longer constrained by copying what I could see.