Your post is a bit confusing. ttp://inspekt-security.com/beautiful-feet-books/ is your site and that is your original picture posted there?
And the salmonfishingqueen.wordpress.com. isthe one that borrowed the picture?
I don' t see the picture from at http://inspekt-security.com/beautiful-feet-books/ and
http://inspekt-security.com/wp-content/uploads/2013/04/pretty-feet-contest-150x150.jpg in use on the blog at salmonfishingqueen.wordpress.com.
Are you sure the picture is in use on that blog and not another? I cannot find it on the blog URL you posted. If it was there are you sure they have not already removed it and you are looking at a cached page in your browser still showing it to you.
They are a WP hosted blog so WP could do something if it says they will in the WP TOS.
if it is really still in use at salmonfishingqueen.wordpress.com. and I missed it you most likely won't get much help posting it in a forum except to let others now this blog borrowed a photo from you, and may feeds some trolls.
First, you need to check out the WP TOS and see if they have a rule about the taking of intellectual property and if they will arbitrate the issue or take other action.
Then you should contact WP's customer service by email or phone, provide then with your information and proof and ask that they take the action they say they will in their TOS. That would be the best place to handle it.