ohh I do this way, I will do a post about it too I guess because I don't use to post how I animate it, I separate all the objects in layers, then in after effects, you add "keyframes" it means, where the animation starts and where it ends, so you can add a keyframe where it the object starts, and where it moves, and that's all.

It has effects like "distort" effects, I use this one of "wave distort" to simulate the hair movement for example. give it a try is not hard once you have all in layers, if you learn how to use keyframes to move, rotate and resize, and then try the effects