mmmh, I think I got to do what you suggested, thank you. Though what I was using as a default method WAS flexible binding, what I needed to use was region binding, and it worked for hair, body and legs (it didn't really work on the arms 'cause I need them to bend 360°) Thank you for your time and ki...

Flexible binding? What's that? If you mean the "Bind Points" tool It won't work on a png.

I found in the menu "Bone" the Flexi-Bind Layer" Button but it won't do anything...

I am in a similar situation: I am going to do an animation, not with pictures but with imges drawn with photoshop (which I export in PNG) Therefore I exported individually every body part and made a different layer for each. Then I Bind every Layer to it's bone with the bind layer tool but I cannot ...