ok how big do they hafta be, do they have to be approved, and do they charge you each time you try? and as long as i's a cutesy pet is it ok pretty much?

The rules

This is for the one you upload on site to replace your default pet image. If you want one just for your profile, I don't think it needs to be approved, or a certain size.

correct, i am asking for the pet image...i wanna eventually redraw all of my pets, so far i got the popoko drawn.

So, like I said. If you want to pay the 500 CSC to upload a new pet image, you can find the rules HERE. This will replace the official Subeta art with your own anywhere your pet can be seen. All of the details - sizing, approval, whatever - can be found IN THIS LINK

If you just want to remove the pet image from your pet profile and make it your own art work, there are less rules. As long as you're not falsifying the pet image (Drawing a pet on fire, when you do not have a reborn pet) and it's PG-13, I'm pretty sure you're okay.

For example - In their profiles, I have removed the official pet art for Discordia, Pacifist, and Syth JUST from their profiles. If they were to win pet spotlight, or when I train them, they still use the official pet art work. I haven't paid to change the art in the profiles, I am allowed to do this for free.

yeah i caught that :) thank you. i missed the link the first time.