Art. I'm a sucker for good art in an RPG product. The art in the original Baby Bestiary wasn't just good, it was inspiring. The associated text reminded me of the ecology series of articles in Dragon Magazine, complete with hooks hidden within the text. But to be honest, I've sent most of my time with the original Baby Bestiary just looking at the art. Quite simply, it's amazing and evocative.
Which means my only question with the new Baby Bestiary Volume 2 & Vol. 1 Reprint Kickstarter is: do I get Volume 2 as a stand alone, or do I opt for the slipcase?
Did I mention it's systemless? From OSR to 5e, you should be able to find use for this in game.
Here's what will be in Volume 2: