Here's a link to a quick 8 minutes-step-by-step video from an animation i made a few days ago for a freelance project. It's very very fast, just an exercise to learn " Adobe premiere pro " again to make tutorials when i'll have time to do them.
i slowed down severals times so that you can analyse mechanisms i use to put on movements.. Enjoy :-)

compositing by Guillaume Viémont : vimeo.com/73210291