Search one of the following locations to find the corresponding concept art:

  Concept Art #1: The telescope in Anne-Claire's room 
  Concept Art #2: The machinery at the far right side in Anne-Claire's room 
  Concept Art #3: Sanitarium, the fountain at the entrance 
  Concept Art #4: Sanitarium, at the clipboards on the left wall in the room 
  connecting the main ward with the dungeons 
  Concept Art #5: Sanitarium Dungeon, the door to cell A-3 
  Concept Art #6: Riverbrook Park Estates, pile of rubble behind vendor stand 
  Concept Art #7: Riverbrook Park Estates, the Gold Fountain 
  Concept Art #8: Riverbrook Park Estates, the Gold Plaque on the wall of the 
  building in the lower-right section of the map (at the screen with the gate to 
  the apartments) 
  Concept Art #9: Symposium, on the table in between the left set of pictures in 
  the first room 
  Concept Art #10: Conveyalator, the lemonade stand to the left of the entrance 
  that is to the left of the big red button 
  Concept Art #11: The nut cart near the drawbridge lever 
  Concept Art #12: The big green statue-like object behind the FF Prime