If you look at a character system like Pokemon, Magic, Neptunia, Fate/Grand Order or Azur Lane there is a lot of consistency. Sometimes one person does all the work (Tsunako!) but other times they bring in different artists but give them enough direction that it hangs together. That's what I'm looking for in trading cards.
Second the typography could be better. Some of it the font choice (a harder problem than I wish it was) and some is with the spacing of things.