for the tarot, its supposed thaat theres no need of the art to be the exact same of the cards name, as in cyberpunk tarot or jjba, also, there are tanks that are named charioteer, or smthing like that
in the 200th chapter they say that wasnt a chariot, but, that tanks name is a charioteer (i had to search it) aand in the tarot´s rules its never mentioned that you need to have the exact art as its all about the names, as in cyberpunk 2077 or jjba
im exactly at the 200th chapter, and, the fanservice disappears after the 38th chapter. for me it is not boring, but it def is not a masterpiece. pretty much like any other shonen