>>57927998
they're literally teshadraws on tumblr. the sad part is the riolu (nia) used to look a lot cuter but then they just fucking spiralled. the art is thankfully palatable somewhat, but those furry-isms still pop up here and there
pic related is what those two characters used to look like, and the above picture you posted are their 'new designs'. i'll post examples in spoilers as they're 'character sheets' for lack of a better term since i don't know how many have actually read her fic (it's called seekers of soul on ao3 and it's really high up there in terms of popularity)