let the sub create pace
didnt have any problems with your intro, sounded good for something that was mixed on headphones.
your idea to have plenty of sub was a bit weirdly executed. with deep DnB like you're trying to do, you will absolutely NEVER get away with it unless your kick is huge. i think of it like this...a balance between depth and movement. depth is given by the sub. if you want a deep sub, it should play around the same volume as the kick and be quite 'alive'. movement on the other hand is offered by the kick drum. the kick drum is what moves absolutely EVERYTHING around. the kick moves the sub and the reese. the deeper the kick, the more the sub and reese will move (which is what you want). the reese offers liquidity and a distorted source of heat that compliments drums.
basically...
the kick is pretty much 100% related to how good the sub and reese sound. deeper kicks will support deeper basslines while still providing movement. the power of the snare is optional. usually the job of the snare is to provide the force that your kick drum is failing to give to the main harmonics of the reese.
for this particular mix i definitely think you need to amp up the depth of the kick. layer a sub kick on it, or gate a sub kick to it or something. put some slight chorus on the reese and when you make the kick better the subline should automatically move a bit more. make the sidechaining harder if its still weak.
that wasn't my main problem, though. i think the energy of the song was actually a bit dead for one reason. the reese was empty. you sort of had some kind of thin reese that only showed itself briefly. if you want plenty of sub and an 'atmospheric' reese, then you need to make sure that the reese is working directly to strengthen the beat.
place your reese strongly in time with your kicks and create movement with it instead of just playing it alongside the sub and desperately trying to come up with interesting LP modulation.
plenty of sub can sound good, but only if you make sure that all the other instruments are functioning properly to enhance the sub.
the kick - needs to be deeper and bigger.
the snare - totally fine if you want it like that, if you make the kick/bass/sub good enough it wont matter.
the sub - give it more power/pulse
the reese - dont confuse the beat. let the sub drive instead of trying to do freeform wobbles
anyway, forgetting about all that, the other stuff was sick :P sound relatively professional. we should definitely talk more (send me a PM), your stuff is good and your style is really....fun to listen to.