Definitely some scary and disgruntling stuff going on here. I'm not an expert on music but maybe with the high frequency part take a bit longer to build up, I think the drums are good and build up well, but I think the higher tone thing going hits it's apex too fast and stays there for too long to fit with the building drums.
I also think maybe cutting 20 seconds or so from the middle might make it work better so it isn't doing the same general noise for as long. It hits sort of the 'crescendo' at like 2:44 and carries that to about 3:50 with very minor variations in the drums and tone thing.
I don't have the vocabulary to properly critique or review music, but those are my two cents on it. good work!