10 Apr 2017 Zen Center Plein Air by Kim Senior | posted in: Blog | 0 Zen Center Oil Painting. 4.5 x 11 in. Plein Air At the Zen Center on the Laplatte River Peaceful, very secluded. This was painted on pellon ( like interfacing material ) lots of bugs and wind, almost blew away. The pellon material will be mounted to a backing panel once its dry.