First of all I would like to say, your game has an amazing gamefeel with beautiful and fluid animations and a great use of hitbox and physical interaction and it is very, very fun to play.
I think the jump physics a bit too floaty...
understands that a very air based game and i love it, but it would be nice
if you made her jump more faster and with more inertia
but maintaining yout duration and altitude.
The animation of spinning the broom in the air (https://twitter.com/i/status/1200581849678045184)
It's a lot of fun to perform, it's my favorite. but think the input to perform its a little complicated at first, when I played the second time I realized that I can not hold "->" to execute it, but it makes air control a little difficult.
I understand how it works, but I think you could make an easier input for it.
I think the dash jump could be more fluid, like in Megaman X, Zero, ZX etc.
maybe could have a different animation for double jump, like she doing a little spin in the air. the enemies could have a health bar for better indicate to the player how much is left to be defeated.
For last, I think it would be interesting to add a hit when the character slides in the ground while sweeping, maybe executable after the dash or after the slide. and maybe the hit down in the air would throw the enemy down. and would be good support for PS4 control, and option to map any keyboard / control button to the actions you want.
I loved the music, I think the choice of Lo-fi / Chilloute combines well, and that other genres like Jazz and Bossa Nova combine as well too. I've been following your project for a while, and I really like what I played, good work and keep it up.