No two trunks will be the same, as shown by these four oaks in woodland near the Tyne Estuary in East Lothian. There are many thin epicormic twigs arising from their trunks, and there’s also a significant amount of dead wood, which can be good for various forms of wildlife.

Details: Pen; 2011; 30 cm x 21 cm. Unframed: original £150; print £30.

Included in the gallery Trees 2