10x better
at this point I'd say lose the dithering its not adding anything.
it looks to me like ur dithering everywhere because u think pixel art just has dithering but imo its a technique that should be understood and controlled, not applied willy-nilly.
The neck and shoulders don't match the reference but also they don't look right for the pose ur suggesting here.
it kinda looks like a severed head on the floor in the corner of the room.
not sure background colour is doing u any favors its pretty dark like the hair so if ur going dark u might wanna fake some rim lighting.
hair doesn't have highlights yet.
add small highlights sparingly for best effect.
some other issues with the forms but I don't know how to explain and can't edit right now