Yes, Azula signed this with a lightning bolt, I can see her doing that. She Just looks scary here. I think they both look adorable though. Zoo would probably sign very formal. I love how Azula's signature is a bit harsher, it fits her character. Should Zuko sign with prince in his signature, or should it just stay the way it is? Azul would so do the lightning bolt thingy at the end of her sig. Enjoy, there will be other characters in this little series of drawings.