I like what you got so far, but the mix/master definitely needs work. Your drums are very muddy. You snare is not very bright at all either, and sound too boomy. Snaretoms like that usually fit best in buildups. Also your hihats need work. Remember, DNB is all about shuffle, not just the amen kick/snare structure. Without it your drums feel flat. Layer your hats and make sure they are in 16ths. Try layering a break as well, it will really add a lot more meat to the percussion. Google how to add a shuffle, which you can either do with hats or a soft snare. Of course experiment, but I think for DNB hats are one of the most important things in your percussion.
