The blog visibility for that domain is set to private. This is what I see when I click the link you posted:
http://feminaphotoart.net/ is marked private by its owner. You can:
Request access to view the site. We'll send your username to the site owner for their approval.
Log out and sign in as different user. You're logged in as 'timethief'.
Learn about privacy settings.
This blog is being domain mapped and that means you need to remove the domian mapping in order to delete the blog. Did you purchase the domain from WordPress.com? If you need assistance in removing the present DNS nameservers from your Domain Management panel, you should contact Support directly for assistance. http://en.support.wordpress.com/contact/