Okay I see where your going with the muddy colors in this, and that works I've seen artists with very pretty art use dull colors for shading but for me I'd try adding very muted blue to a few parts and maintain the red hue on the skin. ahem I'm bad at explaining. Like on the side by side you can see by the bow there's blue on the hair, the hair is reflecting the blue from the bow like- uh bounce light I think its called. The hand I mean I suck at drawling things in side view pov so I tried? But take that with a grain of salt. The eye looked a little off to me but I couldnt put a pin on it so I just left it how it was. A also did I tad more hair rending on some parts that looked "blank"
I just made a bunch of edits I would do if I was drawling it
