A Festive Procession

This photo of one of the panels depicts a procession associated with Dionysus.  From left to right a small child (Dionysus?) is riding a donkey that is being led by a Maenad.  The figures, all of whom except on the far right, are females—Maenads who are associated with Dionysus. Among the objects being carried are various birds, flagons, two baskets with fruit, etc.