You're absolutely right and the only thing I can point to is that it may look a little more exaggerated in the Bust because of the angle of his shoulders. The PF's shoulders, even the down arm, aren't angled quite as much and it might add to why it looks off.
Well they bought the design from Elm studios, who did a fantastic job. So i imagine they have reproduced it and lost some of the things that made the original great. It's not the best angle though, so would need multiple pics to get a better idea
Would like to get the Ex. But a real roll of the dice when it comes to Paints with these guys.
I'd rather wait and see what the released product looks like.