1 down, 11 more to go. 
I really want to thank @noodles for selling a copy to me. I may have had to pay more money than I even did on a single card, but I’m so glad I got it. It’s really amazing to have a card in my collection of which only 100 copies exists. I feel honored to have it.
I will just put it in my binder as is in its top-holder, especially since Yann signed it with his name.
I hope I’m able to add the others to my collection one day, but since none of the others I contacted even responded so far I don’t have high hopes… 
Also, off-topic to the Art Academy Cards but on-topic for my Pikachu Card collection. I just opened a XY1 Korean Booster Box with 30 x 5 cards. At pack nr. 21 or so I finally had the Korean XY1 Pikachu that I wanted and which was the sole reason why I bought the box… Phew, was kinda nerve-racking to open booster after booster and getting close to the last packs without opening the card I wanted… But in the end I had 3 Pikachu Cards. I now got 56 Korean Cards of the entire set, out of the 64 available ones. I’m missing one Common (I’m glad it’s not Pikachu… 
), and a couple of Holo Rares, Ultra Rares and all three Secret Rares.
Greetz,
Quuador