These images are related to temples and sanctuary. They are linked to the book 'She'. the sketches are front view of huge temples with a leading stair pathway. this fices it a distance effect. Also the book relates on open space green lanscapes, temples, ruined cites and chambers.
The images you see above are four sketches in one. But though these are quiet detailed they meant to be just thumbnails. The image focuses on pathways to hidden temples deep within mountains. This gives the overall image a mysterious effect. These images are relating to roman and Egypt architecture. Also my other reference is two games they are uncharted and god of war. Picking these was because of the landscapes, that was most interest to me.