This is a mix of truths and untruths that are essentially misinterpretations. He is seeing the differing planes of existence with accuracy up to a point, that the lower realms are the playground of the dark beings and those cannot be trusted to be accurate reporters or to be harmless. They will make mischief, and worse, and cannot be trusted. He is lumping the archangels in with these because he has had encounters to the point where an imposter of an archangel was unreliable, and he saw through the ploy but drew the false conclusion that all archangels cannot be trusted and that this cohort is not what people have believed all through the ages. That is an over‑pessimistic interpretation of things. The one does not outrule the other—that imposters can be prevalent, but archangels still exist who are genuine and working for the divine. The difficulty is with communication and perceiving an energy masquerading as an angel to know whether it is genuine or not—this is the greatest challenge intuitives face across the board and is not yet solved.
The depiction of you as a fallen angel is an intuitive recognition, as is so for many, many people, there has been a darkening and a spirit infestation and a manifestation of dark energy through you, but this is a misinterpretation of spirit possession as representing your actual makeup and energy. So he is seeing intuitively a blending of the beings involved and can clearly see the darkness. The depiction of aura colors is showing him differences in the qualitative assessment of the energy and is unique to him and his way of perceiving things so it will not translate to others in the same way—so is not very useful. There are indeed many differences among beings with respect to their spiritual status of enlightenment, even in the higher astral realms, but the beings in the higher astral can be trusted, and are divine, and are operating with divine protection. It is the lower realms where the faulty truths and the faulty beings filled with untruths reside and will attempt to deceive and manipulate others.