Is there a way to switch between hand drawn art and AI or a file for comparison?
There is a patch in the OP made by CluckPover that brings back the hand drawn art to the current version.
Comparisons can be found here, and the pages before this:
https://f95zone.to/threads/roundscape-adorevia-v6-7-arvus-games.466/page-730
GrandPaBrowning made a lot of posts about this topic around the time, and the examples have a wide range.