I'm working on "Everything Wrong With Nancy Drew: Curse of Blackmoor Manor". It's going to take a while, since I did a four hour livestream of the game. I'm in the process of rewatching every minute of those four hours and taking notes.
Something which always confused me about the game was the LouLou word puzzle. Where did it come from? As Jane says, she explored the hallway and only found "a funny picture". It's some weird eyeball thing. But when you click on it, suddenly, there's a parrot puzzle. And when you back away, the eyeball picture is there again. What's up with that? There is a sliding sound when Nancy zooms in on the picture, and I guessed it was Nancy sliding the picture aside? Like, the puzzle is on the backside of the picture?
Well, I finally figured it out. It's not obvious with the LouLou word puzzle, but it's obvious with the eyeball picture on the runes puzzle. The picture itself slides open. As in, Nancy puts her fingers in the eyeball and spreads the two halves apart, revealing a puzzle underneath. You can see the sides of the eyeball on the far left/right edges of the runes puzzle.
I'm still wondering how Nancy knew she had to pull the picture apart to reveal a puzzle. That's not intuitive.