This shot is part of the excellent fan made Tom And Jerry Animation Sequence by South Korean, character animator Jihwan Kim. He has done unbelievable job of capturing the essence of classic Tom and Jerry shorts in 3D.
You can watch the entire sequence here.
And it’s breakdown by Jihwan himself here.
Now the section that I have picked is of 64 frames. It has 12 keys and 10 breakdowns. The reason I picked more keys than breakdowns is because of the fast paced beats, some beats have the spontaneity of straight ahead animation. It means some frames become crucial even if they are not that far apart. It’s beautiful.
How The Rough X-Sheet might look like
Shot with Keyframes only
Shot with Keyframes and Breakdowns
Final Shot with all the in-between frames
All The Keys and Breakdowns