I really like the idea, your kids did a great job :D The visuals give a very cozy feeling i can imagine playing more level with other difficulty levels and still feel comfortable. The concept of reusing placed tiles would be a nice to know before starting, i mean it is basically only natural to undo the little wood trails and there is a small bug it seems, if my train is driving into the house , not the trail (yes i placed them by chance flase) the screen says thats correct.
Well done was really nice to play