Alberto Cerriteno has posted links to his latest animation and included the original animatic so you can see how closely they followed through with the original plan. I recommend starting both the final and the animatic at the same time, and just turn off the volume on one.
Also he’s posted tons of illustrations (high rez if you click on them) from the animation. And if you read details on the piece, they did this entire animation in only a month with a very small crew (2 people!).