A great start.
The song itself works very well but you need a lot of work on balancing and leveling. It also seems like you need to ground this with a beat of some sort. It's really light and just flying everywhere in the air, if you know what I mean.
To answer the question about the "sandstorm noise" - If you are using a program (such as a VST synthesizer or effect) and it's an unregistered/demo version, many people make it randomly generate noise. This way, only registered users/customers will be able to make full use of it. I'm nearly 100% sure that's the case here. The only ways around this are to either completely omit using it, or to purchase it.