Smooth animation made this a pleasant, albeit short, piece to watch. However I feel like this was a rather dull strip to animate, lacking any of the humour, imagination, or poignant moments that made Calvin and Hobbes the comic strip that so many love.
Granted, this might simply be a tribute to the strip. Fine, but all I'm say is that if that boy had been a random little boy who had been tackled by a random animal, I guarantee that people would be evaluating this short based on its own merits instead of just being giddy over seeing Calvin and Hobbes animated.