Am I right to say your site targets readers mainly in order to connect them with ongoing original works?
If that is the case, I would suggest a slight overhaul to the review system.
For example, Chapter Length and Reader's level be separated from the 5 and should be in their own category. RL should be scaled from 0-3 on the basis of readability i.e 3 being the level whereby the general population would be able to read. My basis for this is the preconception that webnovels in general tries to play to the lowest denominator.
As a reader, I would find the breakdown TQ/PD/CF and CL/RL much better and would facilitate me in making a decision whether to try the book or not.
The scoring examples of said categories are well done. Expectations were laid clearly and a framework was established. Even if readers ultimately find your review to not fit their expectations, the deviations would not be much unless in outlier cases IMHO.
Moving forward, I assume that you would continue this particular work for a period of time. My first question is whether monetization is on the horizon or this is simply hobby work as I deem the former to provide a longer period of stability for the website but that is just me.
Lastly, I understand that you are going for an ability> pedigree kind of thing with your review website. I have a suggestion which is to humble brag whatever form of legit pedigree you may have in order to establish the first instance of trust for your reviews. To interest more people into reading the first review and so on. But, I understand that this may backfire spectacularly so please take my suggestion with a shaker of salt.
Anyway, just some random questions I had on my mind as I thought your work was good and the website had potential so I was curious.