Some of those synths are really interesting. A lot of cool portamento.
Here's what I think could be worked on: that first synth sticks out quite a bit and it's rhythm is out of sync of the rest of the song, making it rather distracting. Songs that typically have that gradual speedup usually happen quite a bit faster and don't have a competing rhythm going on. One by Swedish House Mafia comes to mind.
Those bass sounds are beast. And the slides are cool too. Nice work on the synths But that up-down slide (or portamento,whatever) during the drops sometimes gets a little ... annoying. Well at least for me. And during the last drop I would try using a 2 snares/bar drum pattern to make things more intense/interesting.
"Sheogorath took hold of the petulant women and ripped her asunder. From her tendons he made lutes [...] and thus Music was born!" /Myths of Sheogorath/ ----- Youtube | Soundcloud Using: Reason 5, Live Lite 8