Antique Cloud I; II; III; IV, 2011. Alumitypes; Ambrotype
Wright used the wet plate collodion process, a method developed in the 1860s that captures microscopically fine detail, to reproduce crudely constructed cloud-like formations from the paper towels used to prepare each plate.

Photogenic Drawing XXI, XXII, 2011, Digital inkjet prints

Contrasting historic processes with digital technologies, the clouds in Wright’s Photogenic Drawings (2 on the left) were created using an iPhone app. 

The cloud on the far left is from the Prairie Skies series