ZBrushCentral

Help appreciated - How to find torso proportions correctly?

Hi all,
i’m quite new to sculpting anatomical figures, and with the following model i am struggeling with the torso. I’m currently blocking out the shape using mesh modelling before i start the sculpting. How can i achieve the correct ratio between rib cage, sternum and breast position? Would the rib cage flatten and deform in a position like this? What is wrong with the torso when looking at the top view?

Some basic advices would be nice. Thank you!

Attachments

Dancer_01.JPG

Dancer_03.JPG

Dancer_04.JPG