These are the parts of the bigger piece ”The Last Judgement”.
The first drawing represents the Judge Osiris/Ausar King of the Underworld, his sister-wife Isis/Aset and the demon goddess Ammit, devourer of the Souls, observing the judgement of a dead Egyptian.
Second one is their son, Horus, the divine Pharaoh, waiting to see if the dead is ready to enter the Afterlife.
Third piece shows the Guardian of the Scales and the one that leads the way for the dead, Anubis/Anpu, Divine Scribe Thoth and the Holy Scale, weighing the heart of the deceased Egyptian with the sky goddess Nut above them.