This is a really cute and fun concept, obviously with more time it can be well refined. The art style is cute and I enjoy the minimalist vibe, its refreshing. :)
My feedback is that I wish there was a better UI system. The words on the main menu are off canvas and I don't know if I finished the game or not as there are no pop-ups telling me what is happening. There is also no way of exiting the game properly.
I do not understand the scoring system, what do you mean by "dev score" ? Also, I see the score goes up constantly whether or not I clean the house and is completely unaffected by my actions. I walked around in a circle for a while and gained a pretty high score.
If these minor easy-fix issues could be solved then you have a lovely basis for a really great game!