*Weird* assistance needed - Wrapping an image/layer around an object
Hi All
I have an interesting thing I am trying to do. (Well at least interesting to me). I have tried almost everything. If I carry on trying, I might land up cracking my skull while I bang my head against my desk.
So, I have an image. A dress (cropped):

Which has been placed on a mannequin with no "3d" shape. (As in it has no bum shape or leg shape. In fact, the back of the mannequin is hollow. I have created a layer of the dress without the mannequin. But now I need to give it shape. For example: a bum.
I also need to take the dress and place it onto a new mannequin:

So to get to the point... I either need to try and "wrap" the image onto the mannequin. Or by using the liquify tool, I can shape it around the mannequin. (This has been done with some success).
But;
my biggest problem is making the shape of a bum underneath the dress...
If I can make that shape, I will be able to place it onto the other mannequin without any issues.
ANY POINTERS will be great!! (I have photoshop CC 2015 - I can buy PS 2017 if I really have to... but it's not my preference(that's for another topic))
ANY SUGGESTIONS will be welcome. I have about 40 dresses shot in the same manner so I really need to find a solution!
