The updated version looks better, I think the tip of the blade needs to be more grey as it looks like its part of the skin that overlaps the cut and is shaped like a scalene triangle.
edit: When I zoom my browser in 150% I can see the other edge of the knife is the knife and not overlapping scalene triangle shaped skin, but I would never be able to acheive that kind of zoom ingame

final edit: While we are on the subject of the Boltons don't you think it would be cool if gray/grey eyes were an option, as I remember Roose being described as having Pale Grey eyes by GRRM.