Lefty or Righty?

We've been working with the little ones on writing their letters more, and a while back I thought we had determined that Claire did better w/ her right hand. Well, lately she just hadn't been making much progress, so we asked her to write with her left hand. The top line is mommy, the middle line is Claire as a lefty, and the bottom line is Claire as a righty. What do you think?

Claire also drew a spider on her board. The 3 legs on the right are drawn w/ her right hand, and the others plus the circle were drawn with her left.