I am once again training to do animation. This video has 3950 frames. The creation took 2 days. Processing and turning into motion (rendering all frames) took 1 day. The difficulty is that the PC can't be turned off during rendering (the process is continuous). I see that the result is far from ideal. I will now have a little experience in creating such videos. I suggest an additional option in the style of drawing with a pencil. This way I can hide some errors.
https://yadi.sk/i/MnBaLWQA1aPypQ - 3d
https://drive.google.com/open?id=1cYY9dABYoE26b8JsZCxoHhXkx-Jl0p0Z
https://yadi.sk/i/dqJSLU725rRLmA - pencil
https://drive.google.com/open?id=1SfXPB8kKa9_GD98Lu9239PDupcG_fGAS