Plein Air Sketch

This week one of our sketch group members kindly hosted us at her (and her husband's) farm a few dozen miles from Des Moines. Their farm occupies a big patch of rolling prairie east of the city, where they raise cattle and lease much of it to others. Lisa, our host, has a small studio in a converted shed on the farm, which has many subjects for sketching--huge grain bins, barns, farm implements of all sorts (historical and contemporary). They even have a century-old Ford farm truck in running order. 

"At Lisa's Farm," oil on panel, 9x12

When I paint outdoors I'm desperate at first to cover as much of the bright white bareness as I can. For green landscapes--pretty common--I start by washing the surface with burnt sienna or an earth red, thinned to a watery consistency. After that wash-in I sometimes work the red earth monochrome into a relatively detailed underpainting, but sometimes I move on more quickly and loosely. In this case I washed the lower half or so with red earth, leaving the sky area white. Then I laid in the series of conical shapes that constitute the evergreens as simple loose shapes. The shed (her studio) was too red so I wiped out much of the red color with a piece of rag and turp. The brushes I used for those steps were the largest in my roll. 

Next I mixed a series of greens using cerulean blue, sap green, ivory black, cad yellow and y. ochre. and used them to paint the trees and grassland, varying the mixes without premixing, doing all wet-in-wet. The studio building was simplified and horizontals added to suggest distant grassland (left) and tree shadows (right) to provide an illusion of depth. Working with progressively smaller brushes I painted the building carefully to separate values and give it volume and shape. Then working into the foreground I used lighter mixes of green, raising the chroma and enlarging the brush strokes to suggest the more near grassy patches. During the entire painting process I was at pains to keep the vast majority of edges soft and vague, saving sharper shapes for emphasis--note the studio eaves and roof line and the peaks of a limited number of evergreens. The piece is still wet and unsigned, pending a rest and further review.