Good job, you told a complete story without anything particularly irritating. I like the tone and art style too. I was kind of hoping the other one would use the sword, but the ending is till good. That said, I do think it would make more sense in a longer version, since it would give the characters more time to shift.
On the more negative side of feedback, I can think of two things that can use improvement: 1. The humans should have more animation frames so they don't look at mechanical as the workers. 2. The player should be informed about how to run before the chase sequences so that it's clear that running is an option. Otherwise players who aren't used to rpgmaker may get stuck due to not realize they can move faster.