A card for House Warming

I am submitting this card for the Shape-up challenge "Anything but Square" @ MAWTT. This is my first challenge with them.

The design and inspiration for this card obviously came from the occasion for which the card was made.
The door to the card can me opened and then It reads congrats. (I need to focus more on calligraphy. I must write better to make the cards look better)

I didn't want to show my bad hand writing and so I dint open the door wide, but I slid it enough that you can see some thing is written and decorated behind the door opened in this angle

This reminded me of the traditional house that I sketched a lot as a 7-8 year old kid :-)
Hope you enjoyed my card. Your opinion is most welcome.