It looks like you always force yourself to get continuous lines, and closed contours, like how you tend to give the eyes an oval outline sometimes instead of using the lines to indicate value and plane changes.
Try and be more "loose" with your approach. Vague, I know. Broken lines are useful, especially when using ink since it is a constant tone.
Also, try and avoid perpendicular lines for hatching, unless you want to describe a flat plane.
Anyway, nice update, plenty of stuff and those faces are looking more realistic.