You are, however, allowed to use every in-game trick in the book to adjust angles and your body position, and when all else fails you can get a friend to take a screenshot for you from a different angle. Also, taking videos and going through frame by frame for action shots is allowed. (SE's camera is a little slow sometimes.)
When I judged, I felt that the use of additional NPCs and PCs as "actors" in shots worked out well to the advantage of many of the models. The goal is to tell a story with each screen shot.
