Thanks for playing and for this constructive review!
I'll add some more stuff to the puzzle with the maps and fix the portal.
I thought it can be guessed that in the puzzle with the 6 panels, the 'up' direction is the gate from which you enter. To make it less vague I'll put a gate icon or something on the panels.
I'll fix the depth of field problem
And as for the block puzzle of the locker room, Vincent Van Gogh's birth or death dates don't have anything to do with it lol. If you still can't figure out please let me know I might've made it too vague. I'll try to fix it.
Thank you for playing!