I tried checking the content with my kindle (a Kindle Touch paperwhite 6 inches) and the first chapter rendered pretty good, with images and text aligning as intended. However the second chapter did not render the first figure and beyond. Chapter 3 rendered OK, similar to Ch 1.
A few more feedback if that helps for enhancing the format even more: - Colors, and references to those do not work on a kindle. I only saw one minor use of colors (red, green) in Chapter 1 so that's not a blocker. - For some reason, the kindle browser doesn't put left and right margins on the page, so the text uses the full length of the device. - Links are rendered with a pale gray, sometimes hard to distinguish. - Figuring out why the Chapter 2 did not render would definitely help.