I set the silhouette, not the fill. A single line meanders through the surface without ever crossing itself — dense where the image should be dark, wide where it stays light.
This is not a drawn pattern but the output of the same Grasshopper definition that generates the puzzles. From two metres you see the animal; from twenty centimetres you see the path.
Standing series: elephant, cat, fox, owl, hare, stag. Your own animal is possible as a commission.