Love the premise.
The game is fun, but the bullets are unforgiving; they’ll just graze the tip of your dress and kill you. I’d make the bullets look bigger, but keep their current hitbox size; that way we’d get a better sense of danger from them, and it would feel more fair without actually changing the game balance. I believe it’s a common thing for bullet-hells to make bullets look bigger than they are, (Deltarune I know for sure does that).