Well.
There's a lot of bass crash right now. What I mean is that your bass drum and your bass guitar have a lot of crashing frequencies in the bass frequency spectrum. The bass guitar, right now, is drowning out any presence of a bass drum. Mix the bass frequencies for the bass guitar and bass drum into different areas so both instruments stick out. The overall synth mix needs a little more air (high end) I suggest a 1-2 dB boost there. Remember, your best adjustments are small ones. It's best to start by eliminating undesired frequencies, then if needed, to slightly boost the desired frequencies. Always keep your adjustments brief though, dramatic change could ruin a mix.
-ImperfectDisciple