>>1979009your consistency is good, except for a few places - mostly points - you go too thick on the ears, and too thin on the chin.
Your ears should have consistent lines the thickness I pointed out to match the "style" you are doing. Barring that, they should be at least the same thickness of the skin, regardless.
The style thing where tall the lower lines terminate in points looks off. I'm not a fan. It's better to continue those lines to proper termination at the end of the image, or where they would terminate naturally, if applicable.
The eyes are okay - you still should have used the circle tool and clipped them, but I digress.
The shiny circles in the eyes should either be a) using lines the same colors as the surrounding lines or b) not have the lines altogether. I personally would go with B as they are made from reflections, thus the lines kill the effect.