@Elway didn't tell you where we *hide* the Site rules... they are under a teensie-weenie yellow polka dot link, upper right of the Home Page in or near the banner. One of them says:
►All uploaded pictures must show toes, soles or arches. If they don't, please report them as "No feet". Shoes and socks aren't really what wikiFeet is about.
Toe cleavage *alone* doesn't count; some well-defined arch must be showing in shots with closed-toe shoes. But if you're into Toe Cleavage, here's a decent one:
"Thank you for flying Wikifeet, and have a nice day." ~@Toe
As many here are so fond of saying, neither is it called "WikiShoes" nor "WikiToeCleavage" (though there are some very nice blogs & Tumblrs for those topics).