Beyond the Oak Knoll

A friend has a ranch in the rugged country of eastern Humboldt County, and this particular site is a magnet for the painters who visit there , a cluster of oak trees on a knoll with a view to a far horizon.
This is my version painted on Yupo , and begun on the site, the first time I attempted to paint plein air on Yupo. The technical specifics of this surface make it a challenge !
9 1/2" x 12 1/2"