Thanks for your feedback, I agree with you completely about the text speed. I've already made changes to fix this, will upload after the judging period is over.
As for the second room, you have to enter the number of corners on each painting in the order provided in the clue. The clue is 2143, so enter the number of corners on the second painting (which is 0) first and so on. Keep the clues equipped as you enter the passcode so that you can see the paintings and the clue at the same time.