If I may give a suggestion for a next release: I am using the plugin in a blogsite and I am using the option to put one picture in an article. It would be nice when you put a small picture in the article, you can click on It to view the photo in normal size. You can use the set function, but I think the thumbnail is too small for the articles and then I need to make for each photo a new set in flickr.
Thank you for your review. It is highly appreciated!
Since you posted your review I've uploaded a new version of the plugin to the website which includes the requested feature. Secondly in this version I also improved the loading speed of single pictures. (set image description to none for single photos. Loading titles or descriptions for single images requires an extra API call which takes extra time and slows down your site.)