Thanks a lot Jose!
Your drawings look great!
As you know, you can import a sequence of png’s or jpg’s. But importing animated gifs actually work already too. 🙂 And importing movie files will soon be possible as well.
Right now imported material will just be scaled to fit your “paper”. Later (soon) we will have options to scale and reposition them. But for now I recommend doing ekstra white (or transparent) space around your source frames to make Animation Paper make them fill only a smaller part of your paper.