Hey thanks for playing my game! One hint I can give for that one that wouldn't be an outright spoiler is that the puzzles in this game fit the theme in that they kind of go against what the normal game expectation might be. Like the buttons in the first room being objects to place instead of functioning buttons.
Also, the 2 larger pictures on the other two walls serve as a hint. They aren't necessary involved in the solution
***Spoiler Below***
And the last hint, that would kind of spoil it, is: Opposite.
Thanks again for playing! Did you submit a game to the Game Jam? If so, link it and I'll play yours as well.