The Secret of the Sacred Panel. If nothing else, zooming in allows you to appreciate the plethora of amazing hats in the crowd scenes. As usual, I'll just touch on a few details here.
Starting with the bottom half, we have this scene:
Also Bishop What're-You-Looking-At.
In the other lower panels, the boredom and funny hats continue.
...And this lady, tucked away in the back, who will stab you while you sleep.
Moving up to the top half, we have the choir of angels:
And finally, there is John the Baptist: