Bearded Jesus between Peter and Paul, Catacombs of Marcellinus and Peter, Rome. Second half of the century. Such works "first present us with the fully formed image of Christ in Majesty that will so dominate Byzantine art.
This fresco of the Good Shepherd was found on the ceiling of the Vault of Lucina in the Catacomb of Callixtus in Rome. The image of Jesus as the Good Shepherd was an especially popular motif in the early Christian centuries.
This is taken from the Catacombs of Rome. This fresco of Christ among the Apostles is in an arcosolium of the Crypt of Ampliatus in the Catacombs of St. Domitilla in Rome. The Catacombs of Domitilla date from the through centuries.