If you have a moment, pop into my friend Leonie Norton's blog.
Leonie's blog will take you on a journey of botanical and natural history subjects in the most exquisite watercolours. She also runs holiday sketching tours.
I loved Leonie's book "Women of Flowers - botanical art in Australia from 1830's to 1960's" I read all the essays in one evening sitting up in bed. And I like to refer to it every now and then.
Leonie and I have often taught at Sturt Australian Contemporary Craft & Design summer & winter schools, where we first met.