To see these paintings better you will need to click on original and magnify. And though you can't necessarily see the following, when you go to the mission, you can look for it: It's said ths devil was at the Last Supper. Can you see him? Judas is in the foreground at right, with his bag of silver. The head of the devil’s head is located on the far right, but it is black and very hard to pick out.

Notice the interplay in the Last Supper mural between the Devil and Judas clutching his blood money. Some may see the image of the devil as a distraction perhaps, but Jesus is the focal point of the mural.

He's at the bottom of the curtain on the right.