"The way it moves and the transparency, it's like stained glass," she said.
Rogers started out taking classes and drawing lessons since art was a passion as a kid. She also married an artist, whom she met at a watercolor workshop.
After years of painting, she decided to branch out into teaching, as well.
"It's a fulfilling thing to see if someone learns to color change," she said, among other techniques she teaches. "They [the students] are learning a lot."
"She's unbelievable," Joyce Shue, of Churchville, said of Rogers. "Really something else."
Fellow painter Shirley Dixon takes classes with Doetsch and many others at the workshop at a weekly painting class at the Fallston Volunteer Fire Company hall on Thursdays.
Fallston resident Shirley Boats was painting a portrait of her granddaughter, Isabella.
Boats, who normally works with pastels rather than watercolors, called the workshop "a real treat."
After the students had a chance to paint for a while, Rogers gave a demonstration on different colors to use and painting abstract backgrounds for portraits.
Rogers stood at a table in the middle of Doetsch's basement with a mirror overhead so the women could see what she was doing.
Rogers took an almost-done portrait of a boy as an example for color layers and details that make the painting "pop."
A valuable lesson in art — and life — Rogers told the audience, "Don't panic," when mistakes are made.
"No masterpieces," she commented. "You want to avoid looking overworked."
She pushed colors around on the paper and mixed as she went along, working spontaneously. The crowd approved of her work with "oohs" and "ahs."
The students were re-energized after the demonstration and went back to their artwork with renewed vigor.
A grandmother of seven, Audrey Concini, of Bel Air, has done a portrait of each of her grandchildren and was painting granddaughter Olivia that day.
She commented that 8-year-old Olivia's "big bunches of hair" was proving to be difficult to paint.
Though she has worked with oil paints for most of her artistic life, Concini said Stonesifer and Doetsch insisted on everyone looking how to use watercolors and "let us jump in with both feet."
She added that talent seems to come out when "someone you know and love is the inspiration."