Ruby Rose has a blue swallow tattooed on the back of her neck. Swallows are a common traditional sailor tattoo representing freedom.
This is one of Ruby’s older tattoos and she has had it re-worked. Pictured top-right is the original tattoo in 2010, which was smaller and was just an outline. The cover-up is filled in with shades of blue and looks more cartoonish.
The original tattoo can be seen, smeared with ink, in this photo from when Ruby was getting another tattoo underneath it
note: the color swatches shown here are not a real tattoo