It felt like an actual desktop, good work. I also took the game more seriously because the single chance, I guess it felt like being trapped in a room :P
I got free, but I'm not sure I did it right. Image 6 has the rooms in grey, and I entered the shapes in the order from top left to bottom right. I'm not sure if I would have come to the same solution using the other clues I collected, but now I'm free ':D