Alright.
The main synth sounds really weak. You need to assign them to a mixer channel, boost the highs with an EQ, put on a little bit of distortion. Turn off the delay and reverb on the VSTSs and then add them in the effects line. Make sure the reverb has a long decay and a large room setting.
You might want to layer the melody another octave higher to give it more power aswell.
Try adding in more atemospheric effects to like reverb kicks explosions builds reverse explosions etc etc.