Popping the top, is about the only way Santelli can make himself vulnerable without getting out. At first I thought there was a perspective shift between those panels. If you look at the one with the head, you can see off the edge of the frame the third interlocking piece folding out to the right as well. Between the images you go from chest view to 45 degree view. The thing I don’t like about that explanation is the light source on Santelli’s right (near) shoulder doesn’t change to correspond with that perspective shift.