I made this one testing traditional animation techniques: I did all drawings on A3 sheets of paper, with my light table; then I imported and made a first step of colour in PS, at the end I imported all sequences in AE and made the final colours and editing. I know, it was a bit tricky but I wanted to try this handmade way, next time I'll use a graphic pen I promise...:P
The audio is not the final one, is still my "mix".
Hope you like it! This is only the beginning! :)