EOL can import your Flickr images only if you provide properly formatted machine tags that tell us which organism(s) are featured in your photos. For most photos, machine tagging is easy, but it's important to follow instructions closely and there are a few cases where things can get complicated.
For most photos, all you need to do is create a binomial tag with the genus and species name like this:
Example: taxonomy:binomial="Panthera tigris"
Note that you need to use quotes in your binomial machine tag in order to keep your tag from breaking apart at the empty space between the genus and species name.
Tags are not case sensistive, i.e., either taxonomy:binomial="PANTHERA TIGRIS" or taxonomy:binomial="panthera tigris" will work just as well. You can also put the quotes around the entire tag instead of the taxon name, i.e., "taxonomy:binomial=panthera tigris" will also work.
You can add tags one by one by clicking on the "Add Tag" button in the Tags section of each photo page. You can also use the Flickr Batch Organizer to tag several images at once, or you can use the iNaturalist Taxonomic Tags for Flickr tool which lets you search for scientific names and then creates the tags for you.
Please see the EOL Tagging FAQ for more information about tags, including discussions of special cases, e.g., uncertain identifications, tagging more than one organism, tagging subspecies, nomenclatural complication etc. If you have questions about tagging, please post them to the Tagging help thread.