
I would like to see more bioluminescent creatures, and plants, at night it would be cool to be able to stumble into some enchanted little area with a ton of bioluminescene, just more for the looks and immersion but i would love more bright and vibrancy amongst creatures and plants, especially at night.
As for the game ending, i thought the turbine repair and the minigames on the alien computers were fun and obtainable resource wise, i wish it was a little harder to acess the late game area/alien ruins and farther, i just ended up using the tadpole and just swimming straight to it avoiding the collector leviathan, when he does grab me it doesnt feel super threatening, it would be cool if he had a short mind control power before he attacked, which would make you lose control for a second while he spins you around to look him in the eyes while he swims at you. Sorry for rambling but the ending was beautiful, calling the ancestors, the lights, the solar system spinning up, swimming up the corridor and seeing the beautiful ambiance and talking to the ancestors. it was very pretty but a bit underwhelming for now, and i know you are probably working on detailing it and making it better in numorous ways, but it didnt feel complete for the story, we called the ancestors but then what, did the cure take effect, did they save the world tree?, and the late game area feels more hard to navigate than it does scary or creepy, a lot of more annoying small creatures in that area, but not much other than story.

And to add on ti my thoughts, a mobile NOA would be cool, being able to check messages without having to travel 1km back and forth for blackbox locations.