Personally, I wouldn't recommend something like this, not after that whole pmc monarchy drama a while ago. It just gets people mad and causes fights even if it looks harmless :/
Personas are basically a little character you make that's pretty much your account's mascot. For example, this is mine. In the description you can make a little bio about them if you want, it's pretty much your choice :)
I would create a persona / oc for yourself, and create or find a profile picture based off of that. I recommend looking around on Pinterest for pictures for your profile picture as well as pictures for your page if you want :)