Some of these are harder than they look. Tons of little lines to nudge into matching, many line endings to fabricate, combined with subtle gradients which are hard to join without a seam...

At least the lines are a bit sketchy, so it doesn't look wrong when they end in weird places, and the gradients look sort of watercolor, so having them not join smoothly doesn't stand out nearly as much as it usually does.

This one still took me about an hour and a half to fix.

Well keep the good work up :P soon you got more :P And yes this is a hint :P

Where is na-kun? the left loli? :P