So…How Many Fingers?

Question time. Gaffer zoukka has been staring at GTA IV's promo art a little too long. He's noticed something. Check the girly's fingers. He thinks there's six. Six isn't normal. I think there's five and some accidental linework on the part of the artist. Question is: what do you think?

Does she have six fingers (is thumb a finger?) or am I crazy? [zoukka @ NeoGAF]