You call this a prologue. Indeed, you say "This is not the whole prologue, only a little preview that I am hoping to get some feedback on."

There are some serious problems here, and the fact that you seem unaware of what they are may be the most serious problem of all.

But, before we get to that, let's state up front that you have a strong prose style, and while the tone, grammar and syntax isn't precisely want I'd prefer for my own reading, you certainly have a feel for the genre. You capture the mood well. In addition, no one will fault you for a lack of imagination. You've immersed yourself of a universe of Tolkienesque scope and seem to have a solid grasp on the history and backstory.

So. On to the problems. I don't know what you think a prologue is, but by my reading, in this "little preview," you have the raw material for no less than two full-blown novels, and, by definition, we haven't even gotten to the actual story yet. The flaw here is that you're not telling a story, you're telling us about the story, not at all the same thing. Even if it's just a prologue, you need to carve away all the exposition and narrative (which simply puts an impenetrable barrier between the reader and the action,) and present us with an actual scene, or two. Remember, it's a prologue. If you need to take this much time setting up the backstory, maybe that's the story you should be telling instead.

I can't draw any definitive conclusions about the story proper, since we haven't come close to it as of yet, but I'd tend to think you might have the same problem once you get into it: too much narrative, not enough action unfolding in real time. I'm not blindly advocating a "Show, don't tell," approach. Not at all. Telling is fine, when called for. Nothing is more ponderous than a moment by moment accounting of every mundane activity from dawn to dusk. Many events can be compressed into exposition. But when you want to establish a contrast between crucial events and descriptive filler, then you need to bring the camera and microphone in close and capture the visuals in a way that makes them come alive for the reader. Telling us about the story will never accomplish this crucial result.

I think you have something strong going on here, but I don't really know what it is yet. I'd be interested in seeing the result when you have it finished.