You don't need perfect photos - just the right ones. Here are a few small things that will help the film flow much better.
Choose photos where the face is clear and not too small. Close-ups usually work better than distant group shots.
A growing-up film tells one person's story. It should be clear who the main person is all the way through - from the first photos to today.
Try to choose photos from different periods, without leaving gaps that are too big. That way the change over time feels natural and continuous.
Bright, sharp photos work best. If the face is dark, blurry or hidden, the result may not be as good.
You don't need the same pose in every photo, but transitions between photos where the face is at a similar angle usually come out smoother.
24-48 photos suit most growing-up films, but you can choose anywhere between 2 and 100.