I just feel like the royaleapi updates is not the correct place for art updates like this
I do think they are nice and you should keep on doing stuff like this, stuffs with card histories, lore , banners, a lot of veteran CR players find it very interesting and follow it.
I am not sure what would be the correct place for it but I doubt you are reaching a lot of your intended audience with this. I always thought a page with some general CR lore would be good. Like a 3D world website where you can roam around and interact with cards in a Clash Royale world.