I don't think that Black played moves a grandmaster would. For example, even I can see that 11... a6 is a better way to prepare the pawn storm than 11... Rb8 because it stops Nb5 while preparing b5. Also, no grandmaster would play Kh8 unless they calculated like crazy and thought it was good - and since as you said it was a bad move, they would likely continue the attack on the queenside, which is a far more natural play, even if it also would turn out to be unsound in the end. I love the game though, and the fact that it didn't look artificial until I took a deeper look at it is quite impressive, well done.
Ah, and speaking of the game, this was my idea of making Lucario as a heroic mastermind for my fanfiction story, meaning if I were to make him a genius, maybe chess is the way to go that would teach him planning and preparation for the future.
I liked how the Queen Gambit Netflix series created a few custom position with the help of Garry Kasparov, and how some of the other games Beth played were based in real life games, so I wanted to test on creating a game, even though it wasn't based in any chess.com games or any master games, except with the few moves, like that Nd6 and the queenside castling.
I don't think that Black played moves a grandmaster would. For example, even I can see that 11... a6 is a better way to prepare the pawn storm than 11... Rb8 because it stops Nb5 while preparing b5. Also, no grandmaster would play Kh8 unless they calculated like crazy and thought it was good - and since as you said it was a bad move, they would likely continue the attack on the queenside, which is a far more natural play, even if it also would turn out to be unsound in the end. I love the game though, and the fact that it didn't look artificial until I took a deeper look at it is quite impressive, well done.
Really like your Winnie the Pooh meme pictures on your profile, btw.