I've got lots of stuff to say here:

There are some super raw cuts in the melodies in some places.
There's no Drum N Bass in this Drum N Bass song.
Maybe a few quiet snare rolls here or there, in the background of only one instrument that doesn't take a lot of space.
Song structure is a bit better than other songs, only a BIT.
I love the intro, this being the whole song, which brings us to song structure.
There are very raw transitions between bars, and lots of unnecessary and unexpected transitions.
In this case, there's no intro, buildup, drop, breakdown, or outro, which is everything a Drum N Bass song should contain.
I know this is only one of your first songs, but experiment, and try. There's no excuse not to.

Other than that, if you make an effort to improve, maybe you'll get some more stars.
You know I hate giving half stars, but honest feedback and strong constructive criticism helps producers, not pity.

nice melodies and all that but where r the drum and bass drums there were only a few background beats