I really like that we have a fabulous treasure and monsters in the complex but there's no wondering why -- as in many other adventures -- the monsters aren't using the fabulous treasure. They're essentially very creepy animals. Perfect.
I also like the background lore -- is it from Numenera? -- that hints at a bigger picture without getting bogged down in it.
I would consider turning some of the long paragraphs of room description into bullet points. I think you'll discover you can save word count pretty easily and it'll be easier for someone running the adventure to parse what's in the room more quickly and easily.