Everybody knows where to find their Flickr feeds (at the bottom of every page) but what you are missing is that those feeds can have image enclosures too!!!
All you need to do is to change the format at the end of the feed URL:
http://flickr.com/feeds/......&format=rss_200
Change the format to rss_200_enc:
http://flickr.com/feeds/......&format=rss_200_enc

And voila!  i.meta  RSS  will present it to you adequatly.