Grace's tattoo

[Ashen Key]

So, I have a bit of a project I'm working on right now, inspired by these two picspams on the costumes and possible character implications in the movie Inception. Basically, I'm looking to do something similar for Avatar (more on cataloguing and possible character-implications than details as to fashion). And part of the costume are tattoos, even if they are the actor's (they weren't covered up, so I figure they were left for a reason, and in any case, the CHARACTER now has them, too). I can see most of those who have them, but I've run into trouble with Grace's.


Grace has a tattoo on her right arm, which can be seen in the cafeteria scene when she's explaining Jake's adventures the day before.



Trouble is, I'm finding impossible to get a good look at the design, and I have no idea what it could be.

So, does anyone have a HD shot of it, and/or does anyone have any idea what the tattoo could be?