I’ve always liked the aesthetic on blood on a white surface (something about the contrast of red and white - it’s usually blood on snow for me) and blood getting into hair. Blood on white hair, then? Fantastic!
Although, I do wonder how they keep their hair clean and smooth. I can’t imagine that their hair gets automatically cleaned upon reviving (hair is, after all, not even made from living cells) so the blood stains are gonna stick around. Washing your hair too frequently can also damage the texture so…