I view both as elements of the consciousness/I Am, as I view that as God, which is the only reality in my belief. The demonic, or shadow self is more useful overall when it is conquered and used constructively.
If separate conscious entities, I've always wondered what demons would look like anyway, given than angels true to description look like Lovecraftian horrors. (Was that too much elaboration for this game? >>
Most things I want to be able to see and handle in person before purchasing, and I've many a disappointing experience with mishandled packages. Definitely in store.