I also often think of how the lines resemble tracks left from a large vehicle - a jeep, a transport, a tank, and how this relates to mechanized warfare and it's ability to inflict huge casualty numbers in a short time period. On the other hand in Rwanda machetes killed with equal alacrity, and I am making my lines one at a time with no machinery.
On the way home, I walked around Foster Beach once, and I thought that maybe I saw a dozen or so marks that might be from my drawing last week. It's almost impossible to say, but they appeared to be those reverse marks made by frozen snow, like the foot prints at Montrose.
It appeared at the end of a long row of marks, that a seagull had tried to help. Surprise beauty.