From the isendyouthis site...
Graham Rich lives and works on the River Exe. His voyages since 1985 are the subject of his art, just as art is the context of his sailing. The driftwood spewed up on the banks is, appropriately, the remains of boats, fragments of fish boxes, and storm damaged trees.
The PDF is well worth downloading, it has the amazing story behind this work. More images here on faslondon.com.