In my understanding, good animation must include all 12 rules, which makes people look smooth and firmly attracted by the characters.
In my mind, the ice age series of blue sky studio is an animation work that perfectly achieves this, especially in terms of the law of attraction. The lens and Action Rhythm of the ice age are very exquisite, and I often turn it over and over to learn the animation rules.
What impresses me most is the squirrel. The twelve principles are reflected incisively and vividly in it. I believe the audience who have seen it are impressed, whether it is the tail following, the body overlapping or others In my mind, it is representative of good animation.
As for bad animation, what impresses me most is a three-dimensional animation made in China, which tells the story of a soldier, but his twelve rules are almost absent, and his actions are very rigid. It can only be said that it confirms the importance of the twelve rules from the side.