Excellent use of textures and colors with the images, especially the cover depicting the magical iron mask.
The "Long time ago" section could possibly be shortened to just the most important details. All 3 of the hooks you provided were interesting. The giant golden trout and the inherited farm stood out as very intriguing.
I think you succeeded in emphasizing social interactions and puzzles, and it's easy enough to add combat to any adventure for a group of players that is looking for that.
Labelling the NPCs "Cast" and the monsters "Supporting Cast" perfectly fit the theme. I also liked that their descriptions were straight to the point.
A way to visually differentiate People and Places and Objects in the hexcrawl description sections would be helpful to grab information at a glance during play, such as a different color for their headings.
I wasn't sure if the Scenario of Play on the last page was the suggested way it should play out, how it played out for your group, or both, but either way its helpful to see that brief rundown.