You know, I don't remember if I was actually the one who frontpaged this or not. That was the first thing I noticed when I recognized your song.
I think you've got a great structure for contemporary EDM going on here. The square was a fantastic choice at 1:30 approx, and I enjoyed your writing. I think the sidechain actually could stand to be a bit less aggressive, with a little more clarity in the mix for this section -- we can bring back the dreamy quality with lots of reverb and pads later, for contrast. Though it's worth noting that I think you've done a good job contrasting sections already.
The only element I'm not sure about is the short, loud, chopped snare for your builds. I think something with a longer tail as you neared the drops would further build tension. That one sounds a bit dry.
The switchup around 3 min and something was unexpected and had me checking to make sure a measure had not been deleted. However, it was neither a detriment to the track as a whole, nor a complete side-bar. I think you could have developed that further in some way to perhaps a more varied drop, but it's not bad as is.
The final drop is quite relaxing and really gives that feeling of bebopping around space. Sincerely hope it's seen some good use in GD, because it deserves it!