Yesterday, palaeoart great Doug Henderson was kind enough to talk about his artworks in an interview on the Musings. In addition to the wealth of dinosaur art he loaned me for the interview, he also sent on a bunch of his landscape sketches on which his art is built. Those familiar with Doug’s work will know that the backgrounds (and even foregrounds) are richly decorated and detailed and provides a very strong frame for his dinosaurs, so in addition to their own value as art, this provide a nice insight into how his palaeoart is created.
Dave Hone's Archosaur Musings 
Gorgeous stuff.
Fantastic – thanks for showing us this work.
Jaw-dropping.
These sketches are incredible! Thanks to you and Doug Henderson for sharing them. I’m inspired!