I think that the environment you created really successfully invokes a sense of fear and discomfort! Especially in the first level I was pretty horrified because I thought the creepy crawling demon was an actual spider on my screen. My favorite moments of this game were the small details like the two demons in the beginning of the round running across. I also liked being able to see the demons running through the forest breaks before they entered onto the main path. I think if you either introduce more actions or more enemy types, not only the difficulty curve but emotional curve would be more emphasized overall.