Good start
The animations were pretty smooth.
The story does seem pretty interesting.
I think the Cat's dialog was a little on the lame side, and lol such a bad pun at the end.
To dissect your story, it really does not make any sense for the cat to go into an art room and then randomly start destroying things.
I've had the same problem when I write storys, about how to reveal things but I think there could have been a better way to revel his corrupt nature. Perhaps the Dog walking into his room and finding some plans? Though it is a little too late for that, I guess what I am trying to say is try and make the story believable. But of course that is only my personal opinion and writing style.
The biggest thing that had me lost for a moment was when he said "Son" to the other dog but I did catch that he was just using it as a false term of endearment.
Overall, it does make me want to see where this story is headed.