<style> {background-image: url(http://http://i40.photobucket.com/albums/e247/Wolf_Spirit27/jetprofilepic_zpsz5bdvvfd.png);}</style>
That's the coding I have for my pet's overlay and it's worked beautifully up until now. Now all I'm getting is a blank spot on the profile where the picture should be :/

Your picture URL is wrong. It has the "http://" twice. If you remove one it will work :)
that's a goof on my part LOL! I actually changed the URL from what it was to the current (minus the additional http://) and it wouldn't work with the old one either :/

Really? I tried it on one of my pets and it works fine:
<style> {background-image: url(http://i40.photobucket.com/albums/e247/Wolf_Spirit27/jetprofilepic_zpsz5bdvvfd.png);}</style>