Press this morning, I looked at images of fishing boats and rowboats for about an hour, not seeing anything that I could use.
Finally I gave up and drew my own sketch with graphite pencil (deliciously soft and intense).
The sketch and scan and upload took about 15 minutes.
I like the way it turned out, although I treated it in Photoshop for the cover, making a mirror image of it and then filtering it with "colored pencil."
Sometimes I frustrate myself, wasting so much time looking for someone else's work to use, having so little confidence in my own.