Turn left from the place you are standing and move towards the opened door, now you are facing towards the door, turn right and exit the room, to the left you can find an opened door, move forward, turn left, move forward until you see a horse portrait infront of you, turn right and move towards the curtain which is infront of you, turn right and move a bit forward, you can find empty cupboards in the room, that would be your end point.