Bonsai movement and direction is very important to understand, when displaying bonsai.
All the Shohin shown at the below example are well placed. The movement is not only to look at the canopy and its volume/direction. The slanting trunk, counterbalancing/anchoring roots, counterbalancing branches and most important, the leading main branch are all essential.
If the tree is not styled with this in mind, of course some diffusion and difficulty in reading the balance and movement of the bonsai may happen. In some cases it might even be plausible to see tow direction in the same tree. Some times the case with very formal trees with no clear leading branch.
Below examples of how to read the movement and direction of a bonsai.