aww thank you! the art one of big the reasons I’ve stuck it through with collecting - minus a few (I have OPINIONS on platinum ralts) they are all superb!
off the top of my head maybe a fourth to third of the way there total? though in english I’m nearly complete under ten left (I’m not including the most recent two sets with ralts in that count since i’ve been away from the hobby during that time period and need to reup my spreadsheet/double check what im missing). next closest is Japanese ued which is a little above ten missing.
one’s im having the most trouble with: international would be Portuguese and Russian. I have barely any Portuguese and while i have some Russian they are just so gd rare/ expensive for my budget rn ;/ Asian languages the roughest is undeniably the two ralts (and one kirlia) from the mudkip starter deck, Korean (Lets talk about ADV Korean cards has my research into the cards but in short, it seems likely that the decks had a VERY limited release ontop of not being popular make them a grail that i would love but am not crossing my fingers on anytime soon 
). beyond that Chinese. I don’t have the knowledge, or resources to lock into to get Chinese cards for ralts and just haven’t had the opportunity to do so. (also korean in general they have some hard to get cards ugh)
when i get the chance I’ll slowly start filling this with the rest of the line i’ve collected, as well as slowly start peppering in my non card part of the collection which is definitely bigger tbh,
Happy you enjoyed! 