These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Nightmare Fuel: The vampiric Wamphyri; a bunch of irredeemable chaotic evil monsters whose unholy birth comes from the injection of otherwordly vampire leeches their bodies by other Wamphyri. Not only can they change their appearance to fit any purpose,(such as Lord Vasagi the Suck, whose mouth he formed into a long, sucker, hence the title) they use their metamorphic powers to build aeries - giant castle like structures formed from living, screaming human flesh, and using the same material to create the nightmarish, chaos warhammer style warriors, and their mindless airborne mounts, the flyers.
Oh, about those shapeshifting powers and how they're used: a good indication on just how nightmarish this series can get and how unbelievably evil the Wamphyri are is in a line about Yulian Bodescu's sexual habits. And that line is "He could literally fill her to bursting point if he wished."
Values Dissonance: Due to having been started in the early-to-mid eighties certain attitudes to people of Eastern European backgrounds, and homosexuality are a bit out of step with the modern audience. May also be a case of Fair for Its Day.