This is a lovely fic! I very much like the relationship that you've built for them here, one where they can engage on levels of equal relative comfort. This line especially made me smile:

That, too, was something he had come to understand over time: that the ratio of art was not a one-to-one gesture of affection; that he did not need to match Netherlands in numbers, only in expression.

Such a pleasant concept. Thank you for sharing this story -- I'll definitely come back to reread it!