It means an Original Character. An originally created character.

Also what does OC mean

If I were you I would just take a screenshot of the animation and go to “my page” and hit edit and you should be able to access your photos so you can change your profile pic

Yes. The funny thing is, I just got this app a couple days ago!

I’m new to this app so idk how to make one of my animations my profile photo do u guys know how😕