There are games that are pretty, but boring, and there are games that are interesting, but dull to look at. I do not know how you managed to make a game that's both adorable and fun!
There's so much going on--it's a genuinely interesting logic puzzle, plus the wood-cut artwork of the map, plus all the different stationery and handwriting. And then all the local culture...especially since I had to revisit several letters as I went, I starting piecing together more and more about people's relationships. (Poor Clara! I hope she's not disappointed!)
Really just excellent from start to finish.