Alright, since this song is at the top of the Techno charts for this year, I'm going to slap some criticism on here.
So first off, your song doesn't exactly sound full. This is a combination of a few things. First, your synths sound really old. This is 2015, but your main synth sounds like a 2006 kind of sound. Secondly, you don't have much going. In the "drop" part, all I hear is the main melody, a bassline, a kick and a snare. That's it. There are lots of ways you can achieve a fuller sound. Try layering more. Try plucked chords. Try some hi-hats. Try an arp or a sub bass. This is the biggest thing I see making your track empty. The third thing I notice is that it isn't very loud to begin with. If you use a weak synth like the one you have here as a lead, it won't give the impact you desire. Use something bigger, or make it bigger.
Overall your song is also pretty repetitive. There are some varied riffs here and there, but it's not much to fill up the three minutes that the song spans. Nothing particularly interesting happens. No impact breaks, not much automation, and nothing that breaks the mold.
It doesn't help that your transitions are rather uneventful. The transition at 0:35 might as well have not even been a proper transition, because nothing happens. It just goes away, and bam, suddenly, there's the lead. It even changes key, which would be good if there was a proper transition to make it less unexpected. Something similar happens at 1:26.
It's also pretty unoriginal. Like I said, nothing here is very interesting. The beginning starts with a sort of Stereo Madness riff (which isn't compositionally original at all), which then goes into a section with a very generic sounding melody, followed by another similar section with another very generic melody. Nothing differentiates this track from anything other people have already made before you. Try something new. Maybe use some mixer effects or something.
My last word of advice is the ending. For one, you played the beginning riff, but every so often you bring back in the piano for a couple of beats. The problem is that it feels out of place and sudden. Maybe you could have executed that section in a more discrete way. And also, the piece just cuts. You didn't leave a little tail or anything. It doesn't make sense to end a song this way. Let it breathe.
Sorry if this review sounded really really mean. When I point out the faults in a song, it's not because I really hate the song. I spend the time to write these things out so that you can grow as a musician. It's really cool to hear praise for your work, but eventually, as you begin to get better, you realize that criticism and advice is what you actually need to continue getting better. Hope this helps! :D
4/10 stars, rated 3/5. Keep composing!