First of all- even if I got the reward at the end, I feel like I'd be a bad designer :) I put several of the same objects, and I blocked the door and the windows with furniture every time, but with no consequence!
I have to say- I had fun. I could see this game as a bigger release, where you would get more and more complicated orders, with more and more constricting rules (such as 'no furniture near the window', 'no more than two chairs of same type').
The graphics were readable, the interface clear and easy to use. The sound fit the game, and there's an extra point for voice acting :)
The use of theme was pretty good. I always appreciate when the gameplay is really connected to the theme, and in your case it is just that!
Over all- I expected to find something really simple, but I ended up having more fun than I expected! Keep up the good work!