decent
for a first, this isn't horrible. i've heard way worse. you actually are using drum and bass elements, unlike most of the people who have top scores for this category with their tracks. i have a lot to say, actually
basic drum and bass song structure has a very progressive introduction, usually 1:00 to 1:30 minutes long. it's followed by your first main section with lots of bass variation and such. then comes your slowdown, which can be similar to your introduction, but should contain some new elements but generally just different progression. finally you would have a second main part, which doesn't require much change from the first; i like to include new snare sounds and minimalistic things. end your track soft, but don't let it carry on too long
as for your drums, try not to use default noises. i'm almost entirely sure you used fl studio for them. learn to blend sounds and use compression. change pitches; combine minimal sounds with harder sounds. i mostly use compression for harder snares, which can make them last longer, or generally make them rougher. try not to use so much reverb on them, either.
everything else is up to you. i can't say much else because it would be opinion, sorry. try to listen to professional drum and bass, all different styles. i hope this helps