Hello Dalia,
I am sorry for the delay of this reply.
By default, when you click on the photos filter from your dashboard page, EasySocial show photos stream from you and your friends. If you want to show the photos stream from everyone, you will need to customise your EasySocial. What you can do is to edit the file 'JOOMLA/components/com_easysocial/views/dashboard/view.html.php' at line 224 and replace the below code:
$stream->get(array('context' => $appType, 'startlimit' => $startlimit));
to:
$stream->get(array('context' => $appType, 'guest' => true, 'startlimit' => $startlimit));
Next, open the file 'JOOMLA/components/com_easysocial/controllers/dashboard.php' and look for line at 119:
$stream->get( array( 'context' => $appType ) );
and replace the above with the following:
$stream->get( array( 'context' => $appType, 'guest' => true ) );
Let me know if the above work for your or not.
Hope this help and have a nice day