You need to leave Room N°102 from the door you entered on the room’s right-hand side when you descended from the platform. You will reach Room N°100. Leave the passage to exit Richelieu Wing to your right and walk straight towards the escalators in front of you to reach Level 1 of the Richelieu Wing. Look to the left for the Angelina Restaurant entrance. Access to Room N°501 is just in front of it. The figurine is in the middle of the room.