Dune Life Study (top) and Petals Study (botom) by Charles H. Reinike III and Effervescence by w.e. pugh and Charisma by Henry Callahan in background. The study is a single painting that depicts all four sections of the larger quadtych.

Because of the large scale of the final painting, this study was especially important. The study allowed him to preview and modify his design as he worked on the larger painting. The quadtych is composed of four panels that can be hung separately, in pairs or as a single painting. 

Link to 84 X 84 Dune Life Painting