I managed to beat it (I think? At least, I got to leave the lighthouse, although there was no explanation of what happened, and then the game froze). However, the last two symbols above the combination lock are definitely in the wrong order (unless that was intentional? But that would be pretty unfair). I only figured it out because of the... semantically meaningful choice of number.
Aside from that issue, the puzzles mostly felt fair, and also pretty grounded in the logic of the setting. The audio provides great ambience, and I definitely prefer the first-person style of point & click over the seemingly more prevalent 3rd-person style where you have to wait for the character to walk everywhere. Overall, this is on of my favourites so far!