It sounds out of tune at the start, but then the problem appears to fix itself after the strings come in at around 0.15, and picks up again at around 3.05. I think that it might be the reverb on the lead synth. You don't need a whole lot of reverb to make something sound better. Also, this is way to repetitive, you need to change it up a bit. But pretty good over all
YOU DARE CONSTRUCTIVELY CRITICIZE MY SONG?!?!??!?!?!??!??!?1/!?!?!? I WILL DESTROY YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111111111111!!!!!!1!!!!!!!111111