This is cool man, like what youre going for. Melodically, the bass gets repetitive quite quickly cause its only playing 2 notes, try mixing it up a bit, shift a note up an octave, add a couple more notes from whatever scale youre in etc. Also when it comes to basses in DnB, they tend to be massively processed and automated/modulated to get that movement and make the bass seem bigger and more dynamic than it is, try it, through modulation from the synth, and from FX :)