Right now you're facing the cupboards. Now turn left, you can see an entrance in front of you, move towards the entrance and exit the room. Now turn left, you can see an opened door in front of you, move towards the door and pass through the door. Now, you can see a staircase in front of you, move towards the staircase, you can see some portraits to your left and some portraits in front of you, climb up the staircase and stand in front of the portraits and it will be your end point.