I am really sorry that the background music simply does not harmonize with your elective song style. Too much confusion originates from the effects of both. It is difficult for the listener, your song properly to \ " grasp \ " and is deflected by the Synth in the background. He is too meddlesome anyhow. Your song part as such is absolutely hearing-worth, so I would choose maybe, nevertheless, another background. As far as I can recognise this, is the Synth from 90sDisco and is called "complete"! You bear attempts, nevertheless, better a nice easy Drum, which only accompanies your song, so that the attention on your song is steered and then will also free itself the mastering-problem! The Synth you maybe use at 2:18 only as a conclusion! Only my personal suggestion!
Your song earns to rework everything once again!

Regards
Lehar