I assumed this was an RPG sprite, only other possibility was a platformer but since it was facing south I figured it must be an RPG, so with that in mind I edited your sprite
not so much of an edit as a reconstruction.
quite a bland sprite, lineart is awkward and the colours and dithering wasn't very pleasing
as you can see, I drew over your sprite and then made it an even number of pixels wide. this is just personal preference, Ive always found unevenly sized sprites arrogant when they could just be an even number wide, also I think they could cause a few problems with tile interaction in a game. still a personal preference- I just don't get why some people do it when it isn't needed
that said; started colouring, based off your colours, shaded in a more simple way which gives a clear idea of the light source.
and some subtle selout near the highlights which is just something Ive been trying out lately, ignore it if you wish.
