I just found something of note on the website of the Merseyside Maritime Museum in Liverpool, England.
They have a small online exhibit called “For you, the war is over!”. That’s the same name as the completely separate, unrelated exhibit I worked on here in Canada. Ours was a large travelling in-person museum exhibit that featured a lot of items from Bob Henderson’s Homefront Collection. It was put on by a consortium of Alberta museums with loans from elsewhere in Alberta and Canada.
The Liverpool exhibit is interesting because it features sketches collected by a British Merchant Marine member from his time as a PoW in Germany. If you compare them to the sketches we have on this website GermanPoWCanada.com, such as those by Otto Ellmaurer, you may notice some recurring themes and even similar drawing styles.
Here’s the link: http://www.liverpoolmuseums.org.uk/maritime/archive/displays/merchant-navy-pows/index.aspx