It's a fun idea, I love decorating stuff. And surprisingly accurate. The clients are calling me out on everything I didn't do right, lol.
The gameplay is pretty good. My main suggestion would be ux improvements like allowing clicks to progress dialogue, and making it easier to move/erase objects (like right click to erase, hold shift to move or something). Allow people to get into the flow of decorating rather than clicking on the buttons to switch between their brush.