okay i my review
this time i used my android earbuds to hear the sounds more clearly ;)

i have to say that you surprised me... in a good way!
here some infos that will be important for the things below this infos xP:
the piano right at the beginning and at the ending: i will call it short version
the piano right at the drop 1:01: i will call that long version

first off: not the perfect build up, but hell jeah when it comes to 1:01 it gets hooot! ;D
the short version right at the beginning is too monotone, especially for a build up. surprise the listeners with an other version, like a different long version (if ya know what i mean) after you used the short version half a minute, but don't use the version at the drop 1:01, 'cause that's a kickass sound and should only come up with the drop and at the end :).
you have the same monotone problem at the end (cool ending though i like it, the d'n'b is outstanding there), at the end you can use the long version from the drop, that might sound interesting (fool around a bit, experimenting is the best trainer ^^). and cut the ending at 4:34! the last 13 sec are useless.
the bass could need a biiiit more power (just slightly increase it).
the laser-like-sound you used right at the drop: work on that thing a bit, the rythm doesn't fit so great, you also didn't fit the right tune (can i say it like that? my dictionary sucks...)

that flashsound you used right at the beginning: great idea
i like the d'n'b, only the bass needs a biiiit more power
the build up is just great, 1:01 got me like hell! the track reminds me of aviciis track "the step"
i like the way the track goes :D, go on with it bro!

4 stars, i want to hear the full version