Beginning had my head bopping around, which is always a good thing in electronic music.
The synth at 00:40 could do with being a bit more powerful.
I think the dubsteppy bit at 01:10 needs a lot more to be going on. Add more instruments?
The rising sound at 1:43 sounds like it's going to lead into an amazing drop, but then it doesn't. Maybe try getting a drop in there? (Same applies to the second time it happens. Maybe you could try putting it in at the end of the song as well?)
Asides from that, generally I would say try to have a bit more going on at any point.
That's all I can think of. Overall, I would say a nice solid piece of work!