Hi. Thanks for your purchase.

If the photos are animated, then you can start stabilizing the camera animation and then modifying the keyframes of the photos animation. Start with the one you want to lengthen and then check all the others.

If the photos are not animated, then it is as easy as adjusting just the camera’s keyframes. It is not hard at all, but can take some time.

I hope it helps.

Hi. It is possible. You can take the precomps that are already done, duplicate and adjust them in order to put the new content. It’s not difficult but it takes some time. Maybe a couple of hours or more (depend on your skills with AE).

Of course I can do the work for a small charge. You can mail me with the details of your needs throughout my profile page.