Cool! I just had a feeling it was hand drawn. I'm trying to animate like that, but I'm quite sure how to do it. Do your pencils need to be a certain type of pencil? Because I always have it come out too soft. I use multiply to the layers to make the lines look blacker though. But I don't know how to clear everything in the picture yet in order to use the color bucket. I wish I knew.
Is Toon Boom Harmony what you used to animate it? What did the 2 other effect programs do btw? (You don't have to answer that if it's too complicated though.)