Hi, Thank you kindly for the advice for the poses !
As for your own question in your latest post, the way I decided to tackle this while using photos as a reference is to make a very rough skeleton and using the the different joints as reference to where the arm was in relation to the knee and so on. When I got confused I'd move my skeleton over the photograph to see how far off I was and then adjust the limbs where needed. Usually I'd get angles and sometimes the lengths wrong depending on the foreshortening. So far I've made one from fantasy/memory and two from reference, but this took very long as I think I tackled a certain pose I used in the wrong way ^^ !
Of course I'm not saying my way is right, just that it was the first I came to think of !