I am playing File Under Kingdom:
The tutorial is well done with one caveat which I will get to in a moment. It teaches you tile by tile in a progression but it also raises the challenge a bit as you go so it is not a given you will be successful each puzzle. I had to restart two puzzles.
I like the artwork and I only made a mistake once choosing the wrong building (I mixed up the Windmill with the Hunter Shack but they are not next to each other on the stamp section so I do not believe I will repeat).
The help screen is very well done. I found myself going to it several times for the various bonuses but if you play for a bit you will remember most of them
The one criticism I have is that I tried to save and you lose all your progression. The game warns you but I thought it meant on the current puzzle but it brought me back to the first tutorial puzzle. Not the end of the world as it is a teaching tutorial but i would have thought for such a neat causal type game it should let me save wherever I want even if it is a tutorial. This is a minor gripe.
I think our @Sonoftgb will love this game!