It's mostly his fault.
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This is the first animation I've ever made in my life. It took about 5-6 hours in rough line art quality. I don't really know anything about it, so I don't even know if it worked.
It feels like I got everything wrong from the start. I realized later on that the dimensions of the chairs and everything else was wrong.
Well, it was my first time, so I'll learn from this failure and do my best next time. I don't know if there will be a "next time" though.