Excellent design! But I won with a shortcut... Spoiler You can use the slider that pushes the blocks out of the way to push B onto the win block!
I like appealing design and this house is really aesthetically built. It was perhaps a bit dark in some areas and actually a bit too straight forward but because of the beauty of the level I'm upping it from actually 4 to 5 stars.
My B had to really peer deep into the lower level of the house to collect all the other stars. Some pretty fascinating architecture to this house!. LOL thanks