The atmosphere feels very fitting for an exploration game in the dark. I really liked the background music.
Exploration can be somewhat unforgiving, as sometimes I had to jump down without seeing what I'm actually falling into, and many times it was spikes.
And the spikes in the area around the Tree #2 are especially devious, since their sprites have thorns on the side, and I assumed I could jump on the top side, since it was smooth. Bad idea, this ended my run :)
Very atmospheric game with a very nice sense of exploration!
P.S. And now you have 20 ratings, congrats! :)