Nice character design. Good moving set. Excellent choice of music. Perfect romantic aesthetic.
Characters need further development: more natural and fluid movement. Maybe more FPS. Main character mostly.
Music needs a richer sampling. Maybe not as natural as the original buy definitely needs rework.
Aesthetics are ideal but still are a bit plain.
The bottom line is that, while the proposal is very good, the product looks more like a clone and less as a tribute.
I believe that this must be a work according to the time and should not stick to the old values. Needs no nostalgia but refreshment.
PS. Pixel Art is perfect and should not be abandoned; there’s where the appeal resides and the nostalgic value; but more layers need to be added and a richer color palette.
Take a look at this for inspiration: https://apps.apple.com/us/app/dead-ahead-zombie-warfare/id1017311881?l=es