1. Watch out for dust (text remnants from cleaned JP text). There's quite a lot of it in your bubbles, and it's pretty sloppy. Trick: create a check layer (basically, just a levels layer with the blacks cranked to the max, so even the faintest speck of gray shows up as a big black blob.) 2. Sometimes, you clean out the text, but don't redraw the background, leaving very noticeable and highly distracting white blotches. 3. Always export black and white images as grayscale PNG-8. 1) it avoids extra artifacting; 2) it de-bloats the file size; and 3) it prevents messing with color accuracy (like RGB would do).
Rest looks good, thanks. At least the few pages I checked.