Anti-climatic
It had potential, and the artwork and animation were both really good. However the punchline was rather... lacking.
Perhaps make it more clear in the end that the one character is upset, or angry or whatever, and have the kick a little more impactful. A bigger sound, a scream of agony from the abusee. Something just to make it really stand out and pop. As it is, it just kind of goes on without drawing much attention to itself.
The rest of it was pretty good though.