Thanks for the feedback! The "score" was supposed to be denoted by the leveling up bar that is under the health bar but I agree that it should've been more obvious, maybe like xp orbs dropped from the enemies that would go and have a little filling up animation.
And yes, unfortunately neither my partner nor I had any experience with music so next time we will be sure to recruit a musician as well haha.
I'll check out your game :)