RWBY CONFUSION???? HELP!!!! (Patreon)

Hi guys, I'm working on a RWBY pic, Blake and Kali. Somewhere I got the impression they had cat ears. Researching a little, there are versions with cat ears but nothing official. They actually have bows that look like cat ears... So my problem is... do I change... leave... or try and do both...

I'm not a RWBY fan, so if i have the lore wrong or not getting something, please let me know... I hate putting my name to stuff thats wrong.