This is a beautiful track. You can hear your emotion.
I think the piano potentially brings it to a closer place for buyers.
However, I just have a word of caution:
Don’t place too much importance on being accepted or rejected for a specific song. Really, you should avoid ever obsessing over one single song.
You need to just keep creating. Every piece of work is another lesson solidified. Another level up. Another ability learned. If one of your tracks isn’t accepted, that’s okay. Not everything will be. It would be kinda crazy if everything you ever made was! Embrace the song for what it is and move on.
No one wants to meticulously spend hours editing small pieces of a track like reverb, all the while beating themselves up over it… and not even knowing if it will actually make a difference!
If you really want to make music that has a higher chance to be accepted and sell, spend time listening to what is selling in the genre you’d like to create and become inspired from those.
But even so, you NEVER know what weird thing you create that might be perfect for someone’s project!
Work hard at always improving. But embrace it all. And don’t give up. I’m sure you’ll be accepted very soon, perhaps even for this piece!
Just my 2c.