the crescendo at around 0:25 is too artificial. you can't just bring up the volume like that.
also, more importantly vocals aren't in rhythm with the beat.
don't throw shit together thats off key/tempo and expect it to sound good. this is hardly hardstyle. all i hear is the same vocal loop, the same synth melody, and a backing that undulates in volume throughout the song. i don't call this music. sorry for being harsh but i'm just trying to keep it real.