Voice acting, dialogue, & art style are decent, but the animation looks rough.
I think adding some exaggerated smear frames (like these for example: https://idearocketanimation.com/8857-animation-techniques-smear/) to give the illusion of fluid movement & maybe adding a few or so more frames in between would probably help.
For shading & lighting, try using hue-shading & use different colors instead of just black & white for lighting effects whenever it's necessary. (It don't have to be 100% realistic.)