I'm probably being overly harsh. I took some example pictures, but Imgur upload isn't working, and I don't know what the alternatives are nowadays.
First, the layout looks like an intern used Snapfish photobook templates to lay everything out. This means it has weird sizing choices, where it often blows up manga covers to the size of 1.5 large pages, which makes the image quality look both bad like it's enlarged by 3x, and it cuts off a big chunk due to spreading across the thick binding. There's even a phone card (!!!) that's blown up to a full page. That's got to be like 4-5x enlargement.
Back to the template issue. So a lot of the pages have two pictures on them, with like 50% of it blank. Because those photobook templates want you to spend more money to create more pages so they can charge you more. But again, all that does is make it look amateur, and makes this book much thicker than it should have been, had they just kept a more boring layout to preserve the artwork.
I also have images showing the pages where the art isn't blown up, and how much nicer the art actually looks. And layouts that actually looks like a professional photobook, though they're in the minority of pages.
I also took pictures of two other random artbooks I grabbed from my shelf that's manga-esque to show how any other artbook would handle things. For one, a lot less blank space, with layouts done with the art in mind. And in those, if the original artwork was small, it's kept small, so it doesn't look like shit just to fill pages.
Maybe if Imgur uploads work for me, I'll upload them still.