Wow, I totally get feeling unsatisfied and time limits, but I love this!! It's a very distinct vibe that reminds me a lot of cryoshell, perfect for the dark theme. The sound design and orchestral effects compliment each other very well. Variations to the harmony or a faster rhythm section could be a next direction--love the string ostinatos as is--but the vibe you create with textures/harmonic choices is excellent.
Sound design, 3:30 is so cool! i'd love to hear more moments like that. The effect at the ending too, I could see that evolving into something very intense, maybe heavy metal elements? But yea, keep experimenting!