"Djuty" is the translitteration of Thoth's name in hieroglyph. Also, mainly I might have drawn this to show some of the less known deities of the egyptian pantheon:
Upuaut, god of the underworld, Renenutet goddess of harvest, Taweret goddess of childbirth, Aton god of handjobs (no, seriously, all those hands, I mean, c'mon).
I surmise there might be a couple of things to explain:
Ramses II was one of the longest reigning Sovereigns of ancient egypt, having ruled for sixtyseven years; Ay was the sovereing who, presumably, definetly abolished the cult of Aton (or Aten), enstablished by Amenhotep IV Akhenaton to oppose the theban clergy whom had immensly grown in power under his predecessors. I think that other deities might have a bone to pick with Aton beacuse, in his (admittedly) brief "life span" most of the prerogatives of various deities had been condensed in him -life giver, sovereign of the underworld...-.