Initial synths could do with a bit more jitter / reverb for that eerie feel, but you certainly communicated early on what you wanted, and got me on board.
I often find that simple chord progressions work well when they're built up on, and you're doing it quite well here. It can draw on a bit too much to me after a while, so yeah... I'm kinda not sure if that progression has overstayed its welcome a bit.
0:54 sounds a bit like Stranger Things' intro. That arp. Then the strings kick in, and it sounds like a horror cartoon. Not sure about that kick though... Drums feel like they lack a bit of punch when they come in.
The piece from 2:04 onwards reminds me A LOT of Phyrnna's stuff, especially from the earlier Epic Battle Fantasy games; it brings to mind various battle themes she's written in the past, and I don't doubt she'd approve of this heartily.
The cinematic thing at around 3:00 could do with a bit more buildup, something subtle in my mind, but it's negligible at this point.
4:12 was sublime, and so was the breakdown at 4:19. I kinda wish I heard more of the intro / ending instrumentation, in conjunction with the heavy cinematic orchestration -- there'd be quite the chill down one's spine, I imagine. I also agree with Jockeying76 about strengthening the bass notes of any other instrument you have there; that (contrabass? tuba?) and the bass drum complement each other and to have one toned down is to basically leave the other hanging.
Outside of all these things, it seems well produced. The balance is about right, I think. I found it pretty decent. Keep at it!