Thank you for responding, Peter!
Let us then conclude that :
(i) you are the owner of the "Evening at Sea" jigsaw,
(ii) Jim Bennett is kindly requested to return it to you as soon as possible,
(iii) Peter, if you want to make it available as a prize in a photo competition, please let us know -- but that would be a separate issue.
Please let us know how things develop from here
.