In this detail of the nude
in the lower center, some of
the underdrawing for the figure is
visible to the naked eye. This
underdrawing reveals that
the woman's hair was originally drawn
to fall in front of her shoulders.
Click on the lower red box to see a detail of the underdrawing
through the microscope. Click on the red box at the upper left to
see a cross-section of the paint layers. Click on the thumbnail
below right to return to the full image of the
Last Judgment.