I loved most of the gallary puzzles. But i still dont get the 8letter one, like i got it but it was all about finding the theme then brute forcing through all 8 letter words about that theme untill 1 worked.
Blue prince is a DEEP HOLE. Just solved my fourth sigil. It is really relaxing to go in play one day, put it down for a couple of days ruminating on what you learned, then pick it back up and play 2 more days.