Umm...
You really should not submit a song yet if you know that you're going to get a low score for it. Try working to the fullest on a song for maybe some days or weeks. Or maybe remaster them if you really want that song to have a high score (though it won't really be that exact same song now, right?)
Anyways, decent remix here. Maybe giving more "delay" to the synth, also the synth kinda sounds like Boom Boom Dollar :D