I'm sorry boo, but even if she isn't wearing a glove, I know as a photography nut that her black hand isn't because of the shadow, that isn't how shadows behave. It wouldn't turn your hand completely black in a strobe-lit studio photo. Further, you can see the shadow behind her arm, not in front of it.

If she isn't wearing a glove then something went wrong in the editing, but if it distracts me from the rest of the photo then I'm sure their photo editor would have noticed it as well.