I expected themed classes with "Bloodborne" or at least references to the lore in the texts. But the classes are interesting, fun and disturbing.
However, I'm having some graphical issues.
First of all, 90 Mb for only 25 pages is really too much, perhaps the PDF export has not been well optimized.
Many texts have a dark outline that eats away at the thickness of the letters and creates optical noise. My advice is to NEVER use outline in texts and if the background texture disturbs readability it is better to change the background in those specific points.
And in the name of Formless Oedon absolutely remove the black outline from the texts on a red background (e.g. pages 41 and 45)!
Finally, there are not many graphics that take up double pages, in my opinion a single page PDF is more comfortable to consult.