I'm looking through https://www.c82.net/naturalists-library/illustrations and all the illustrations seems to be of non-dissected animals/insects, at the illustration themselves. Of course, impossible to know if the illustration was drawn from a dead or alive specimen, but none of them seems based on anything picked apart as far as I can tell.

As an example, all the drawn butterflies seems to be drawn as if they were alive, not dead (https://www.emilydamstra.com/please-enough-dead-butterflies/).