Her left hand does seem a bit off, but this pic has splendid lighting.

right legs is bigger than her left.

It's called perspective.

xctman said:
It's called perspective.

Yeah, bad perspective. Her back leg shouldn't shrink that much in a perspective sense when it's still that close to the viewer.

Looks plausible to me. If her right leg is farther away than her left leg, (which, judging by the way she's standing, it seems like it is) then the size seems about right.