I took a break from reading Higurashi
I don't know what possesed me from going from Rena to Xptan but I did...
(XP IS THE BEST OS EVER)

That's pretty good, but the pose seems a little awkward.
I lol'd at giant beach balls... XD
but yeah, i know about center of gravity and all but I wanted to try and give an impression of motion, as if this is a moment caught in time where she's about to jump up in excitement or something. Also euughh her head is like floating isn't it? ._.
I'm pretty sure if she were about to jump, it'd be at an angle, and lead to multiple injuries.
Just my opinion.