Thank you. I've yet to find a scholarly effort to discuss the complex finger positions one sees in early Christian art. The two fingers upraised, however, are called the "typical teaching gesture" and seem to represent a teacher. That the left-handed man in the male couple displays the two finger gesture, rather than the typical right-hand husband displaying the gesture, is provocative. I'd see a man, like Ehud in Judges, who is a spiritually-empowered left-handed man with feminine/gay qualities. (see "Suzie Parks, “Left-Handed Benjaminites and the Shadow of Saul").