So here's what I ended up with:
The girls love to go in and out the door, and pick the flowers which have velcro on the back. I think the project turned out pretty well, but I think I would change the shingles a bit as they didn't turn out quite as planned (my daughter also disapproved as they didn't have pink). Also, I like having the door open so they can play easily, but it doesn't look so great to have them just hanging there. If anyone has any suggestions, I'd love to hear them!