Without going around what has already been said: I think it's a somewhat enjoyable track with a grotesque atmosphere reminding me of a demented circus or an abusement park. The song doesn't really pick up until around 1:55 when more synths are introduced. The piece as a whole may work as a background music for some video game perhaps, but I wish it would offer more than a single melody stretched for almost four minutes.
It's not a bad piece, but there are details I think you could take into consideration for the future. The structure per se isn't exactly the solidest I've listened to so far but it's working, and if you played around your main melody and built variations on it, it would have made your track more interesting and less "burdening" in terms of catching the listener's attention. A bass line would have helped keeping things a little more engaging, even if it were just a pulsating four-on-the-floor bass countering the kick drum.
Consider this as a start for more similar ideas that could flourish in your mind.
//FD