Listening to the album felt more or less the same. I don't think that Bathory is one of those bands where each track flows into the next, and the album is a unified whole so much as a collection of great tracks. I will probably get along in the future by just checking in with a few favorite tracks every once in a while.
Yes, they were Warhammer stuff - mostly demons.
Your art sounds interesting! Have you posted any on the art thread here?
I have thought about looking for a teacher before, but it sort of sounds wrong for the genre. Total self-sufficiency feels like some sort of an ideal for authentic bm, and I would like to try and aim for that. Noise just takes practice - no previous musical experience is necessary. Hopefully I will do a real release one day, as I have only participated in a few online-only compilations so far (one of which was, in hindsight, sort of a joke).