Really like what you have so far, definitely fits the theme and I like the mechanic of freezing enemies, works as a good strategy to deal with multiple enemies. The combat is satisfying, and I don't know if it's because I've played dark souls but it would be great if there was a dodge mechanic in this.
Initially, I would peck at the enemies only attacking when their backs were turned, but I decided to be a brave boy and fight them head-on, and I like being able to time their attacks whilst also having the challenge of multiple enemies.
But yeah overall I like the art style, movement, and combat. I think the only constructive points I can think of are adding the health in (which you brought up) and maybe changing the color of the numbers that pop up as there were times I couldn't tell if it were me or the enemy that was being damaged. I think other points like enemy types/levels will only come as you develop the game but what you have here already is very good :)