That's probably one of the most cosy games of that jam. I just want to play this during some winter night while drinking some hot cocoa right next to a lit fireplace.
The idea behind this game is awesome ^^. The introduction where you craft your door is a really nice touch!
I'm usually not a huge fan of "decoration/dress-up games" because they usually lack a purpose, a "end goal" other that "make pretty things". So the concept of seeing where you land based on the decoration really got me ^^! I spent a little bit of time testing the different possibilities (place one item, open the door, repeat =p), and it was really fun, you perfectly respect the theme ^^!
A couple of nitpicks however: I would love to be able to remove elements (and edit those who are in place), but I can understand why it's a bit too much to ask for a 7 days jam ^^').
Finally, I stopped messing up with the door opening and I did this door, playing with overlapping items ^^:
And you know what? Even if I said that the reason you got me was the "behind the door" thing, I don't know what is behind this one. I placed the last item, felt happy about it, took a screenshot and closed the game, without thinking a single second about opening it. I guess I was wrong, and the fun was in decorating the door after all =).