I think most of it looks pretty good. Some of the black lines seem a little heavy, and the overall quality of the scans seems a little fuzzy, but that just could be the size you posted them at. Try messing with the levels on the Black and Whites to see if you can make the lines a little sharper before you color them.
btw, you need a poll point between 'Excellent' and 'ok I guess' I think it's pretty good, which is not excellent or merely ok, I guess...