That's a quite good first attemt even tho it sounds more like a fast paced dance song rather than DnB. I still think you did a pretty good job at it. but if you want to mess around with DnB i suggest you look some drums up, i'd suggest Amen Break, and look up some tutorials maybe.
In any case it's a good first attempt.
PS: Would you mind checking out my latest track?
It's a remix of the megaman 3 stage select theme.