If you find a place packed with Free avatars, that doesn't mean they are stock. Just because there is a signature on it doesn't mean you can use it. You MUST ask permission from the Original artist and give proof of it to the WP mods. There are tons of art shops and art help posts around the forum. Just save up! Also, I'm no mod. I just wanted to help. (If that's okay) And yes, If you find Stock pictures of dogs or wolves on DA it's free to use.

https://www.deviantart.com/

So get started, search Wolf Stock.

I would recommend HotNStock for Stock images!

There you are~

No Problem! Just make sure you add credits in your Notes or Bio

Ex:

(c) [Name] @ DA