As for the synths??? Really not a fan. They don't sound dnb like atol. Open up akimbo's or Lumberjacks track, PLUS. The got great liquid dnb. Study their tracks would be my advice...
& open it for remix so ppl can give more directed comments. Your snare is to cymbal like, the 808 is better than the 909 for dnb. But you'll have to add fx to every output. Instead of using a 16beat pattern. Use a 32 or even 64 variate the kickdrum and introduce a double snare in the 3th or second bar. Dnb is also sample based so a dnb drum to enhance the drumline is certainly an option.
BTW this is not consistent with your last track. You can tell everyone that the samples you used from your previous track are yours but I ain't buying it. If that was the case then you wouldn't have published this. Since the level of quality between this and the other one is HUUUUUUUGEEEEEEEEEE!!!!