Missing something! – Escape Room 3:like Room & Doors Review

I have been stuck on the box/cube that was inside the pillow for days now. I got all 4 shapes - circle, triangle, square and diamond - I have solved all puzzles and have tried to place shapes on box in all different order, still the box will not open to show the key, something is not right with this game, even picture hints don't help, glad its a free game.......needs more work and better hints.
Review by Satin-Blue on Escape Room 3:like Room & Doors.