Technically, the sounds are pretty plain even with the modulation, but hey, it's practice.
Last few things:
- kick is pretty boomy without much punch. I just made this recently, and I happened to find an awesome kick to use after 0:09 (if you try not to think about the insane guitar ;D). Yours doesn't need to be that kind of timbre, but it does need to be louder and more powerful. It should be heard pretty much all the time.
- At parts like 1:50 with a lot of layers, see if you can hear every layer by focusing your ear on an individual instrument. If you can't hear a layer very well, then some other layer is too loud, or that layer is too quiet.
- You could greatly benefit from a mindset where you can't stand repetition; then you'll want to vary things up more often, even if just by a little.