Right now you are facing towards a wall. Turn to your left and go forward, by crossing the dining table to your left. Go straight till you reach the railing. Now take a right turn and enter through the arch. Now, take a slight right turn and go forward towards the open door. Now, take a left and go outside the room. At this point there is a piano in front of you. Take a right turn and go forward towards the portrait and the window. At this point you have reached your destination.