Okay now you are on the stair case facing towards a white pillar with switches on it. Turn to your left and go straight. Now turn to your left and you are at the arch entrance and to the left there are few stairs. Slightly turn to your left and go up the stairs. Now your are in the corridor facing towards the portraits, which are six in number. Walk all the way straight passing those portraits, until you are in front of another few stairs. Now turn to your right there is an open door in front of you. Go straight all the way to the end of the room, until you are in front of a glass window and white sink on the left, that is the end point.