Thank you very much for your constructive feedback. I've edited the pages to remove the more egregious issues, such as longer words on multiple lines. I assumed shrinking the font would make it a bit hard to read on some screens, so I kept all the main dialogue on 13px haha. I suppose I'll know soon enough if shrinking the fonts makes it harder to read.
Bubbles serve the text, not the other way round. It's okay to spill. Also, line-breaking words is okay, too, just not in the dumbest and most desperate places. Take the word's morphology into account:
(re(pro(duc)))(tion)
What was the problem with breaking it into "repro-" and "duction"? Similar length, decent bubble padding, easily captured by the reader's eye. Instead, you shat out "reproducti-on" as you were about to collide with the bubble border because you didn't plan ahead. Like those idiots who cut through three highway lanes of busy traffic at the last second just so that they don't miss their exit.
Readability comes first, and text picture is a thing. Make the text pleasant to read, don't stoically follow some rule or another for following's sake. I'm sure you've seen plenty of commercially-made manga and how they do it. One would think those would be plenty as reference material to teach you what is good and why. After all, if those guys wouldn't consider the effort of editing their text into shape worth spending they'd just not do it and keep the money for profit.
You should not need to be told that.