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If You are not comfortable editing php files please don't do this!
You need to make some edits. Make Joomla template override for:
...\modules\mod_community_photos\tmpl\photos.php
and copy that file to
...\templates\YOUR_JOOMLA_TEMPLATE\html\mod_community_photos\photos.php
Then edit new file and add at the end:
to get link for latest photos of that user.
other options can be easily created my editing task part of url. Put &task=display and you get all photos. Put &task=display&sort=hit for all photos sorted by hits. Just look at url that displays certain pages that display photos.
Don't forget about this override since changes in new module files can "brake" it.