As far as I know, doubleposting is perfectly acceptable when it's to bump a topic with new content.

Okay, sorry I've been putting this off for so long D=. Just read 3 and 4. You're definitely improving with narration, but there's still a few things that read awkwardly. A few typos too, but I'll just skip that (the only one that really affects the flow is in Ch5 where you said "me" as "more").

It's a fairly original idea having Nyte as the narrator, but it feels inconsistent; like, as though narration switches between First Person (as Nyte) and Third Person Omniscient. If you're aiming for First Person Omniscient (as in, Nyte knows everything that's going on), or even just regular first person and presuming that Nyte has, after or during the events of the story, learned what was happening to everybody else, it needs to be made clear that Nyte is still narrating scenes in which he's not present. The easiest way to do this is to throw in more opinion statements, rhetorical questions, or even direct references to himself ("While I was still riding away..."), giving it a more conversational tone like Nyte has at the beginning and in his dialogue.

Anyway, moving on, I don't particularly like Nyte's explanation of his god and powers. Not only is "kinetic", at least in that scientific definition, is a rather modern word that doesn't really fit the medieval theme, but Kinetica's name alone is enough to get the point across, as is the description of how Nyte doesn't stop the arrow, but redirects its energy.
The way Keiy asks "what other spells" Nyte has strikes me as awkward, but it could just be a personal bias of mine because I tend to shy away from viewing spells as "definite" things. For instance, if you were basing a story off a computer RPG you might have a character say "I've finally mastered my ice magic!", but not "I got Frost II!". Nyte is, even if he channels the powers from his god, a telekinetic. Realistically, his focus should be on what he is capable of doing with his godgiven powers, not what "spells" he "has".

Also, I have a minor nitpick about the concept of dropping a flying citadel on a castle: walls and fortifications are still part of a castle. What you mean is to drop the citadel on the keep.

The thing that baffles me the most, however, is the final section, where in the course of three paragraphs you describe a woman as being 40, young, and old. Forty is kind of between young and old, but pick one side or the other D=.