Listened to it, 'till the end in fact, and I really appreciated it, it wasn't perfect, let me say you that first, I think there's a need in training in term of mastering, the dark ambient phase needed to have some really low pitch, to add that kind of vibrance of "sheer", also, the chords and harmonics you brought with the metal part, was really progressive, but it's your style, and, even though it's not perfect, it's still good.
But here where I shall say something really good : That was pretty awesome, all the way, that feel of being insecure, everywhere, and having some kind of speech about the character, every sound was well brought and really gave a sensation of fear, I am personally : A great fan of Dark Ambient ( as I compose some) and really, this was good, this was an intresting feel, it was an intresting experience.
Great work on that one.