Two things:
The intros/bits:
THESE ARE INCREDIBLE. I really could take tips from you. The piano etc. is perfect, the sound design is spot-on. The pauses are just right. The only thing is that the melody is not mixed in well, and the note it tends to rest on is not the right note. Overall, though this is good.
The Drops:
The drops, while respectable, are not as amazing as the intros. I wouldn't call this dubstep. They are a bit too chill IMO and too repetitive. The lead overall takes up too much of the EQ range, and it is SUPER REPETITIVE.
3 stars for the intro, -2 for the drop, snare, repetitiveness, and lead.