The thing about Jon's new tattoo - besides, being insanely awesome! - is the fact that it's the LEAST SCARY DRAGON EVER!
Sure, the body of the dragon is fine, but that face?! It looks like it's 80, and while I can't be sure, I believe it is in the act of saying, whippersnapper. While, most dragons were feared for their ability to breathe fire and kill courageous knights, Jon's angrily sits at the window telling children to get off his property.