after a long time, I found this, nekozoone pixai profile. this is relevant because your images here have the promps and which model was used.
this also confirms what I suspected, that his images were edited, but I never thought he was using a bad VAE. it's amazing that despite that, he manages to edit it to look decent.
for obvious reasons, I will not upload each and every one of the original images, but if anyone is interested, here is his profile. https://pixai.art/@nekozoone/artworks