Just a few minor things.
- Sidechain the kick, since I can't really hear the kick. If you have already, try finding a few kick samples to layer on there, to get the kick to be more audible. Layer the snares too, or increase the volume on the snare.
- Add some compression on the kick and snare to give them some "glue" (so they'll be heard for longer, presumably, is where the term came from).
- Add an EQ module on the Master and high pass out everything below 35Hz. You will never need that, since when you turn up the volume enough, you'll get a sub bass frequency in there somewhere.
- Check to make sure no reverb is unnecessarily on an instrument (like a kick in a non-ambient track).
- Check to make sure reverb is on things that should have it, like leads, arps, etc. (not most basses), and see if you can create a reverb that sounds right for each instrument. i.e. A really excessively long decay on the lead will be horrible. ;D
- EQ out any unnecessary frequencies on certain instruments that have clashing frequencies (like leads vs. arps, or similar). You could even notch filter (band stop/reject) the bass where the kick is to be extra careful.
- If you happen to have a favorite compressor that somehow ties things together really well (like the "summing" preset on Density MKIII), use it. Just evaluate how it sounds with and without it, and if it makes enough of a difference, use it.