Well, fuck that spider thing. I don't like that even when hiding, it still goes after you and stays over your head until you leave the spot.
I like that I keep my shards even after dying. I also like the character designs, except the spider thing, I don't like spiders.
It took me a while to notice that I could use my mouse while playing to illuminate the environment, I wish I could use that more against the spider thing.
Thankfully, the dark spots aren't pitch black.
I like the sound design, it's very scary and gave me some anxiety.
I think the game is fine as it is, but I see a lot of potential to further enhance it as a full production. More uses of light and shadows and ways to draw attention of the spider thing to somewhere far away from where you are would be nice additions.