Luna
Luna Best Pony~
As far as I’m aware, there is no way to filter a specific category. We’re working hard on tagging images with proper tags though, so if any “oc only” images leak through your filter, it’s only temporary since there are dozens of people at work, filling in the missing tags. If you want, you could also help with that and tag “oc only” (I do that with some fetish tags that don’t get placed and that I filter out), we’ll greatly appreciate it if you do that!