This art is really good! I cover up my face with hand when i about to advance to another screen. (you know, like a kid :P)
But there are a little problem though(little spoiler)
at chapter 3(where you open the hatch with password)
the password is 126, which you know represent 12 june, but in the note, the date is 12 July.
Anyways, I am glad that you didn't add jumpscare inside :D