Olooriel's Practice Blog

[cesartalves]

I usually try to think of the structure of the forms, noticing which ones pass in front or back of each other and indicating that by overlaps or line weight. Of course this is much easier to do if you have a good understanding of anatomy.
I'm sure if you search for foreshortening on google you will find something helpful; if i'm not mistaken burne hogarth's "Dynamic Anatomy" has a chapter dedicated to that.