The last one you normally would get is in the Supply Room. But you can get the remaining pieces at night, and then enter the Underground from the Docks.
Locations of the Dragon Face pieces:
The City Docks : top of the boat mast
The City Docks : in the sand to the far right
The Museum : on top of the museum
The Museum : in the Supply Room
The Inn : above the street artist, near the roof
The Underground : in the arch where the bulb is hanging
Arrange the Dragon Face features to match the picture, then press the latch :
Left (your left) horn : flat to left
Right horn : up to right
Left eyebrow : up to middle
Right eyebrow : over top of eye
Left eye : down and left
Right eye : up and right
Chin : halfway down below mouth
Tongue : all the way out
There is no safe on Counterfeit Island. There is an underground hatch that has a Dragon Face lock on it.
There is a domed arch with a light bulb hanging down. Climb the cord to reach the piece near the ceiling.
it looks like your face
If you don't complete the forgery training, you can't finish the island. If you don't get the Dragon Face piece from the supply room once you have the key, you can't leave!
On the Tour, you can collect the Dragon Face piece that is in the arch: climb the cord above the light bulb and jump right. At night, you will use the ladder at far left to enter the museum through the hatch that has the Dragon Face lock.
Easy, After you get the piece of paper with the dragons face on it, drag the items on the dragon to make it look the same. (Make sure everything is perfect or it wont work.) Then click the button on the top,
The "ram thing" is a dragon face. (see the related question)
it helps you save the scream painting but you will get to jail to finish but it helps.
Once you have the piece of the Dragon Face from the supply room, you can leave the museum and it is night. Collect any remaining pieces of the dragon face picture and go to the Docks exit of the Underground tunnel. Enter and unlock the Dragon Face lock to enter the museum. (see related questions)
it looks like an idiot and has weird eyes. i hate it
it opens a secret passage
Museum Fantastique After you are done with the forgery training and get the dragon face piece from the Supply Room, you leave the museum and it is night. Go to the underground exit at the Docks and enter the underground. If you have all 6 pieces of the Dragon Face, you can open the latch and enter the museum secretly.Pop Art MuseumAfter you have the key, go back to Counterfeit Island and use it to open the Inspector's house in the Country Side.