I actually had a go ahead at playing the game!
Graphics:
Really amazing stuff! I have nothing to say but praise here. Yoki is a really cute character, and I think I'll go ahead and at least read the free portion of the book! My only tiny nitpick is that currently the transition between standing and crawling is a bit sudden, and the way she crawls made me think she was transforming into a feral fox, haha.
Sound: Apparently music was only recently added? It's quite a nice song. But the lack of sound effects is pretty noticeable. From what I read, you do plan on adding them, so that's good.
Gameplay:
First, a question: Are you thinking of this game having a "Metroidvania" style progression to it? As in, Yoki gaining upgrades and items that improve both her combat and movement options?
I echo some of the other feedback in that Yoki's movement is pretty stiff right now. Though it appears you are aware of this and are slowly solving the problem.
The range attack seems very underwhelming and underpowered with the limited amount of charges and no way to replenish them (as I'm aware.)
The melee attack is functional, but repetitive. A 3-hit string, with perhaps some kind of enemy pushback on the final hit, would go a long way in making it feel better.
The shield needs more feedback. Right now the only way you know it did anything is seeing the stamina icon show up. Being able to reflect projectiles, or maybe even some kind of parry system would be awesome.
Enemy wise, I definitely found the green slime to be the absolute worst enemy in the game to fight, because both the range and normal attack barely hit them. I think some kind of sliding attack would greatly help here.
Another suggestion I have is some kind of taunt function, which could be a risky option that aggros enemies into attacking/attempt to sexually subdue the player, which could be combined with a dodge/parry to quickly kill them. I assume this would be kinda sexual in nature, like skirt flashing, but I dunno how well that'd fit Yoki's personality yet, nor do I know whether taunting at ALL would fit it, lol.
Overall: A pretty great showing, though there's obviously still a lot of work to do!