plugin problems will not work

hi i try to save some pictures of me for example http://www.abenteurer.net/416-botswana-reisebericht/ this ones. but every time i want to test it with google and firefox + a lot f5 and empty the cache, i dont see any differnce! can please help me someone?
thank a lot
daniel

https://wordpress.org/plugins/byrev-wp-picshield-hotlink-defence/