The plate mentioned that Walter Crane did children’s books.
So I went home and ordered a couple of his books. A Floral Fantasy in an Old English Garden anthropomorphizes the flowers of the gardens in beautiful art nouveau fashion. Below is a photo of one of the pages. This page depicts bachelor’s buttons. All the little details, down to their boots, are done to match the characteristics of the plant. Another panel shows a battle between a thistle knight and a snapdragon. Walter Crane has several children’s books besides this one. Since Walter Crane died in 1915, his works have entered the creative commons, and they can be had very cheap, especially digitally.
Walter Crane also did more adult works. Neptune’s Horses reminds me of the scene in Lord of the Rings where the elf summons up the waters to fend off the nazgul, but it was painted over a century before.