Regularly scheduled Thursday daytime and evening demonstrations are free and open to the public!





Thursday, July 5, 7:00pm
Doors open with informal critique session at 6:30pm, Demo at 7pm

Brooks Hickerson

 Brooks Hickerson painting in downtown Portland

Brooks Hickerson has been painting plein air with watercolor and acrylics since he retired 16 years ago.  He frequently paints over old paintings. He will demonstrate his "do-over" technique using acrylic paint over an old painting. Here is what he replies to artists reluctant to paint over old paintings.  

"Are you tired of an old painting? Are you running out of canvases and space to store them? Out with the old and in with new. Paintings are just paintings. They are not sacred. Paint over that old painting. Do what the old masters did all the time. Do-over."

You can find videos of Brooks “do-overing” old paintings on his Facebook page or blog at 



Thursday, July 12, 11am
Doors open at 10am

Carla Bartow
"Wood-Burned Paintings"

 rabbit and hummingbirds wood-burned painting

Carla Bartow paints using woodburning tools.  She will be demonstrating mark-making and how to get different effects with a variety of woodburning tips, how to change out the tips in your woodburning tool, and how to use the woodburner on different wood surfaces.  Carla uses a Walnut Hollow Creative Woodburner tool for her artwork.

Carla's process is very tactile.  Her background in block printing made an easy transition into woodburning when she desired richer darks in her explorations of painting on wood.  She enjoys wood burning and painting animals. 

The day that Carla Bartow was born, it snowed three feet in the Catskill Mountains.  Carla learned to paint at her grandmother's kitchen table in those mountains, and she hasn't stopped since.  Carla lives and works in the magical city of Portland, Oregon. 



Thursday, July 19, 6:30 - 8:30pm

Greg Lewis
"Calligraphy: The Power of Word Art”

 historic calligraphy samples

Hand writing is the art medium of human communication. With its use of sign and symbol, calligraphy is the visual art form that's been passed down through global generations. From the earliest forms of illuminated manuscripts, to the use of modern type forms of today, word art holds its power. Join us for an evening of calligraphic expressions. OSA's Art Without Passport Series is in its second season, so bring a friend. See you there!





Thursday, August 2, 7:00pm
Doors open with informal critique session at 6:30pm, Demo at 7pm

Ken Klos
"Perspective for Plein Air Painting"

OSA’s Plein Art Juried Show will be in the gallery during the month of August. What could be more useful and timely than to have Ken Klos, a plein art artist, share his knowledge with OSA members? Ken is a senior project architect/project designer, licensed in the states of Oregon and California. He knows his perspective. During this demo, he will show how to apply this know-how in setting up a plein air painting.

Ken’s art can be purchased or rented through the Portland Art Museum’s Rental Sales Gallery



Thursday, July 12, 11am
Doors open at 10am

Collin Manning
"Collage Storytelling"

Colin Manning will give an introduction to his medium’s potential for storytelling, personal expression and social commentary. In the spirit of exploration, he will show how his collage subject emerges by searching through magazines and books to find images that speak to him.

Colin received his BFA in Painting and his MFA in Filmmaking, both from the San Francisco Art Institute in 1998 and 2000. Through a technique of collaging and painting applied “backwards” to glass and plexiglass, Manning conjures up a dynamic confluence of the transcendent and mundane. Some of these works appear as fossilized slices of the insanity of our society. Other pieces give us a view to a complex yet graceful subtlety, lying just below the surface of gross appearances.

Manning is also known for his projection performances, utilizing multiple film, slide, and overhead projectors loaded with handmade and hand altered film, coordinating into engulfing spectacles. 



Thursday, August 16, 6:30 - 8:30pm

Greg Lewis
"En Plein Air”

The French term En Plein Air, or "in the open air" refers to drawings and paintings that are completed on location outdoors. This presentation explores the experience of what the eye sees and the heart and hand expresses. The act of painting outdoors has allured artists for centuries to heighten the visual senses, producing either a quick study painting, or a finished work of art. Among the notable plein-air artists are Claude Monet, Mary Cassatt, Winslow Homer, Pierre-Auguste Renoir, Vincent Van Gogh, and Winston Churchill, just to name a few. OSA's Art Without Passport Series is in its second season, so bring a friend. See you there!