Over all i liked this piece. The drums are a tad low, kick should be at -8db and everything else should fall below it on mixing priority. I feel the choice of leads done didn't really fit with the song, it sounded more like something you would hear off mario paint than a lead for a d&b song. It's a wip so not much more i can say that would be helpful in this stage.
The leads never matter on what genre it is, but I agree that the drums are low.
Also, this song is supposed to sound kinda like Feint. A Liquid DnB artist.