you've not really made any vital changes, it just seems like you've transformed it into your own character Jacky-Boy.. There wasn't anything wrong with the balance, MtŪ's pose is much more interesting imo, those changes just aren't necissery.

You've also lost too much definition in the legs, her knees have vanished and all in all she looks less human.
edit - oh don't feel im getting at you Jacky

Edits are always helpful to suggest possible alterations in any form, I actually like the head facing left, plus I do think the highlights on her chest could be toned down a bit. I think the leg to our right is fine, its just the one behind that looks a tad too muscluar. The long hair of you're edit could work nicely, but it strays too far from MtŪ's character.