>>9326993>>9327014Just in case you were wondering, here's a comparison of the head ball joint sockets to female Masterworks, WWE Divas and Origins. And just for good measure, a bonus comparison of hand pegs.
The Masterwork ball joint and head hole are the largest. technically, they can fit on all three bodies, but the head isn't secure and sits too low on the neck. You'll need some putty in the head hole if you want the Masterworks head to fit the other two. The WWE head has a smaller aperture to the head hole, so it can't even fit on a Origins ball joint. The Orgins head can't fit the either two as the hole is the smallest. But if it could, the Orgins head is so small, that it gives the figure a pinhead look.
On the other hand, all three can swap hands no problem. The WWE's hand peg is a little long, so it sticks out more in the shorter Masterwrok's arm hole. That can be easily fixed by cutting a bit off the hand's peg tip.
Hopes this helps.