Another pet peeve of baby modeling agencies is when parents misrepresent their children. Yes the photos that you send in should be the best they can be, but when you hit the modeling agency for baby face time you want them to see a child that looks as good if not better in reality. You also want to make sure that you have sent in an up to date picture.
Although babies do change quickly and there is some flexibility it is still important that a chubby child in picture is not now quite suddenly a skinny baby or vice versa. These are small things but they make an impression. Make sure you make a good one.