I didn't get the chance to try your game during the voting phase, but after trying it now, I have some things to say.
First of all, you doomed yourself from the beginning by making a management game. This type of game is extremely hard to get right in such a small amount of time. Menu-based games also look boring and need a lot of polishing to look and feel "fun."
The overall game progression felt frustrating because as soon as you upgrade a character, people get bored of them. In "deck-building games" like this, it's weird to force the player to just sell their cards constantly, it defeats the entire purpose of building a deck.
And yes, the music is fine but very repetitive.
I saw a comment where you said that you want to keep working on this game to get it right. I would personally advise you not to do that. If you want to keep improving, it's better to just move to the next project. Then in the future, if you want, you can remake this game from the ground up.
So, to summarize: bad game genre choice in my opinion, but everything else seems pretty good.