Intro is atmospheric and creepy but needs a more build up elements to ramp up the tension before u kick in - either synths, filtering in the main elements, vocal samples.
Definately work on the drums a bit as well, put some other elements in there to get make more punchy. lacking a bit of poke at the moment.
Bassline is not too bad, gets very similar - filter it/ mix it up.
i reckon little reeses fills would suit this song (IMO)
Hope thats some useful stuff.