Cormac McCarthy's literary masterpiece 'Blood Meridian' (rightfully described as 'the ultimate Western') had a profound impact upon me. The intensity of his prose and descriptive passages border on an almost biblical, hallucinatory form of poetry.
Alongside recent character designs, I decided to try and depict some of the landscapes he describes in the American Southwest of 1849.
If you haven't read the book, I cannot recommend it highly enough.