The reason why the page order looks off is because it is a Japanese book. These are 'backwards' to the way Western books read -- right to left. So, in a two-page spread, the lower-numbered page is on the right, instead of on the left, where a Western reader would expect it. So, for example, with images 6 and 7, image 6 is the right image, with a lower page number than image 7 on the left.