get ready for some criticism! here I go...
first of all, why do you call this dark? yep it has some dark tones and so on but, in my opinion this is tech step, rolling drums and a wobbly filter modulated reese.
You still need a lot of improvenet in what synths reffers to. Drums are acceptable thought, but still need some more love to put here and there.
The song after 4 bars in each drop gets boring, no changes, this won't keep any listener interested on listening and trying to guess "what's gonna happen in the next 4 bars?".
Hope this feedback is usefull to you and don't get angry man! Just my opinion.
yeh im sort of with neo on this one mate, dont get me wrong nice idea: try resampling the synths after bouncing it - will hardwrite the lfo modulations to each pitch/note change.
but good composition and the 3:27 bass is pretty nice mate. keep working on this one