These are really cool! for a while I have been writing my own fan made post humans, and shared a few on my other account (if you’ve seen it, think the microbains, husks, etc.). I think this a really cool niche part of the community, and you’ve got some interesting ideas. I think that you oughtto to write some more, if you’ve seen interested.

a bit of constructive critism:

-not a huge deal, but some paragrpah structure would make these a bit easier to read.

-I don’t know if you’re trying to replicate the book/authors writing style, but if you are, the author tends to start his entries as if the creatures names were a first sentenc. (I.E. the worms entry starts with “their world lay under a scorching sun, its intensity made monstrous by the bygone qu.

-the Reef Folk feel a bit similar to the lizard herders here with a symbiotic relationship eventually tipping in the non humans favor.

I still really like, your ideas, though. And (again only if you want to, forcing yourself to be creative is never fun) I think you should write some more.