>>56821315Poppy and Amarys are still fairly new characters, appear late in the game, and unfortunately aren't the type of characters that tend to be popular.
Also people who are fans of them tend to people they interacted with, so the SV Elite 4, esp Rika, for Poppy, and the Blueberry Bunch for Amarys. And since Jasmine isn't contantaly on most Pokemon fans' minds it might not even occur to many people that draw all three together.
