Is there any mistake in my track? That could be the reason of rejection

Track link:

Hello guys,
I just finished my first track. Before I upload it on Audiojungle, I want to know if there’s any mistake that I can change and save my track from rejection.
I need your help guys to understand if my track is perfect enough or there is something I should change.

Thank you

  • The piano sounds too much robotic and it´s always the same.
  • The strings sound too poor, get better library and rearrangement all again, sometimes sound too “nervous”.
  • You need to work more in the mix and the mastering.
  • There are some strange volume changes.

I hope this can help.

Thank you for replying me Manriquedelara.
Do you use Fl Studio?