i was on the same spot about a year ago, trying to find out info, this helped me a lot :
http://www.residentadvisor.net/feature.aspx?1211 . It's clear and well illustrated, if you get that you can basically apply the same principle to your snares and synths : each element has to have is own place without being overthrown by the other elements in your track. Then you can look up about sidechain compression, basically its a compression that will apply only when an element kick in (ie ; if you sidechain ur kick to your bass, the bass will be compressed only when the kick comes. anyway they are plenty of tutorials in youtube that can explain it better). With EQ and sidechain compression (i'll focus more on the EQing to start with, its really really a key thing to sound better), you will start to get your drums sounds nicer and crisper.
That, and samples selection, my best advice is to download a shit ton of drums samples, even house or hip hop ones, and try a lot. You'll be surprised of what you can get if you just overlay another kick or snare on top of the ones you got (of course, EQing the 2 kicks, ex : one has nice high frequencies, an other has a great low end, EQ the shit out of them so you get a kick with both of those qualities). So yeah try to get a lot of drum samples it's always nice.
About your sounds : its not bad but as said above the drums are getting drowned in the synths. I would recommend to really focus yourself on getting a nice classic dnb drum beat with all those hi hats, cymbales and stuff. You can throw a random bassline if your drum beat is gold then it will sound good. Just listen at some liquid tracks the musical elements are pretty simple sometimes, but they always have top notch drums. Musical elements in you're sounds are pretty cool, and you're definitely on the right track as you come to ask for help and are open to criticism, always a good thing. So yeah keep it up, as long as you enjoy doing that you should never stops even if early days can be frustrating sometimes....
Hope I helped, looking forward to hear more of your sounds in the future!
peace