Hey nice game overall!
I liked the art style and the puzzle was straightforward for the most part. It was hard for me to find how to unlock the cleaning lady. I dont want to spoil things but i think i found the solution after i quit the game. I might try that again to see if it works!
There were a couple things that could be done better, like transitioning between screens, some collisions like the player slipping down the stairs sometimes but nothing major for me.
Good job on that, and keep it up!