These are the categories of beings present in earth plane. There is a special existence of humanity, as you know, there are not varied species. There are angelics that vary in rank and experience but this is a function of learning and growth and not the existence of separate species. There are other beings in the universe, a vast number in fact, but that is not relevant to what happens here, at least directly, so you are not leaving anything out that is important to consider. The contest is one being worked on and worked through by the participants directly and that includes all other beings in the earth plane who have a stake in things whether human, nonhuman, or angelic.