Hey, it's really up to you! :D
But if you really want my input, I'd say your new oc as your pfp.
You could also try and draw your dog and your cat and add it to your banner while your at it!
Anyhoo, hope this helps! I cant wait to see what you come up with.
Your Truly - A possible friend.
Itzemilyuwu
Just so yall know when i say i could change my pfp to my cat or dog i do not mean a real pic of one of them i mean a drawing.