The character art is really neat, as for the house it's important to keep the scale of the art the same where possible.
Apart from other people's notes, I had some sticky corners where my character wouldn't move at first after clearing an item, as if it was still there or something and blocking me. There were also some issues with the animation not correctly choosing between Idle and Walking (also adding an inverse to the sprite so the character would look left when walking left would have been a nice/easy improvement).
I guess the objective was to clear the house in under the 50, it wasn't really obvious until after finishing.
Overall it was a great idea, and thumbs up for following the theme!