GOD! I absolutely love the waythis was written. YOu could turn this into a book. The only thing I would recommend doing is strengthening one or both of your similes by turning them into metaphors. It would be so much cooler to say, “his arms were falcon’s wings, spread wide and ending in blades of sharp steel” or “The closest formation was the ass end of a porcupine, with thousands of swords…”

I’m really enjoying the fierce, super-hero-like action and all of the ways you describe and analyze the enemy— using metaphor and blunt, degrading descriptions and opinions. It all lends nicely to make this a strong link in the (epic, dare I say) story you’re crafting.