Hi im new im not really sure how to go about this stuff but I made Mathias Cronqvest Sprites and im looking for feedback.
I like the general shape of the sprite, specifically the one with the brown tunic and the white top.
However, you appear to be using a few more colors than normal (24 colors exist in the brown sprite), as well as a lot of off-white, so because of that it seems to look a little too pasty. I get that he's supposed to be already undead/nearly-undead since he's got the Crimson Stone, but there's still too much of similar 'gray' colors in there.
On the other sprites, there are too many off-blacks, and 20 colors. There are probably a few too many off-blacks that you can probably just omit and still have a nice, detailed sprite.
Lastly, the green/brown mandle colors on the top, in the spot near the crimson stone... that looks like it's missing some definition. I know you're following the artwork but when you go into sprite mode it's a good idea to make good solid lines rather than use a dithering mesh of colors like that.
That's all I have to say. I'm not a professional but I think it's sound advice.