But here are some things you might want to look into:
-I felt that the crash at the beginning (0'18")was kind of useless. Don't use it unless you come in strong.
-You basically break it down at 1'58" but you keep the same main synth. I know it sounds cool but try to switch that up to, maybe into a nice high saw synth with a synth bass rythm.
-You might consider adding some sort of build up for the kicks around the 3'00" mark.
-You might want to increase the volume of the snares that you use before the outro.
-The transition into the piano outro seems sudden. You might want to try a beat d