I do not know what you mean by the "flying images effect".
Card Dance might be what you want if you use a precomp as a map for the z position of the cards.
However, using a precomposition with all of your images in sequence as the source for a Particular effect's particles might be what you want.
Although, setting your images up in 3d space and animating a camera moving past them might be all you need.
I do not understand what Mocha would have to do with anything, but then I do not understand your original question either.
What is a "flying images" effect? Sorry, you need to be more specifc and provide a reference. There's a million different interpretations of this from swirling photos to rigid cards in all sorts of animation patterns.