Tur your layers 3d and position them where you want them.
The easiest way to move your camera around to each one is to parent the camera to a 3d null object before you move the camera at all.
Then you can move the null's position to each picture. That way you know where the camera's point of interest is (the null) so you'll always be able to rotate perfectly around each pic (using the y rotation of the null to orbit the camera around the pic).
Does that make sense? If not, perhaps this tutorial will help.
- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')
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