Welcome, both of ya heh. To further clarify regarding demons, well they are kind of the grab bag of the RP. You can pretty much find any pic you like for them and it'd work if you really wanted it to. I'd argue that demons are strictly /viruses/, but that's an accurate enough description I suppose since they do in fact do all those things.

Additionally, while it is true that most angels are basically humans with wings and a special ability or three (related to their class) there are "Original Angels" aka Archangels(sometimes) which don't have a particular classification and thus have access to the abilities of all classes, but are less skilled at those abilities. The difference is Original Angels do not have human bodies or essence, but otherwise they are more or less the same haha.

Welcome to Essence ^_^