While it does not always work because of the mathematics involved in creating poses, one way to work on posing is to use a live model to produce the positions you are interested in. Start your live model off in the fundamental poser position (somewhat near anatomical position) and then have them move to the pose you are interested in. As they make each move do the same with your poser model. After some tinkering you'll figure out how to get the poses you want Good luck.